पूर्वोत्तर क्षेत्रीय विज्ञान एवं प्रौद्योगिकी संस्थान   
North Eastern Regional Institute of Science and Technology 
deemed-to-be-university under the Ministry of Education, Govt. of India
Nirjuli - 791109, Arunachal Pradesh 
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Dr. Padma Raj Gajurel


Higher plant diversity & Taxonomy, Ethnobotany, NTFPs & Medicinal Plants

e-mail:prg[AT]nerist(dot)ac(dot)in /prgajurel[AT]gmail(dot)com
Phone (EPBX/Office): 360 2257401-08 extn. 6110

  • Professional Background
  • Educational Details
  • Administrative Background
  • Sponsored Research Projects
  • Consultancy projects (Completed)
  • Completed Projects
  • Memberships in Professional bodies
  • Teaching Engagements
  • Projects and Thesis Supervised/ Currently Supervising
  • PHDs Supervised
  • Participation in short term courses
  • Courses or Conferences Organised
  • Special Lectures Delivered
  • Books Authored
From To Designation Organisation
Dec. 2014   Continuing   Associate Professor NERIST  
June 2006 Dec. 2014 Assistant Professor NERIST
Dec, 2003 June 2006 Young Scientist  (DST Fast Track) NERIST
Sept 1997 Dec.,  2003 JRF/SRF/RA NERIST
Honors and Awards
Award Institute Year
Singapore Botanic Garden Research Fellowship National Park Board Singapore     2015
Badal Dutta Award for Ethnobotany Eastern  Himalayan Society for Spermatophyata Taxonomy 2015
Fellow of  Indian Association of Angiosperm  Taxonomy (FIAAT) Indian Ass. for Angiodperm Taxonomy (IAAT) 2010
Fellow of Ethnobotanical Society Indian Ethnobotanical Society 2010
Fellowship for Young Scientist (Fast Track) DST, Govt. of India 2003-2004
T. R. Sahu  Award IAAT, India 2003
Prof. K. S. Manilal Award IAAT, India 2002
Senior Research Fellowship CSIR, New Delhi, India 2000
National Merit Scholarship Award MHRD, Govt. of India 1992
Degree Subject University Year
Ph. D Botany – Taxonomy Botany NEHU, Shillong 2002
M. Sc. Specialization – Ang.  Taxonomy Gauhati University 1995
B. Sc. Botany (Hons.), Zoology & Chemistry Dibrugarh University     1992
From To Designation Organisation
2011   2014     Co Coordinator NSS NERSIT    
2015 Continuing In-charge , Guest House NERIST
2010 Continuing In-charge , Forestry Nursery NERIST
Topic Funding Agency Year
Ongoing Project    
1. Mapping, Analysis and Management of Medicinal and Aromatic Plants of Arunachal Pradesh using GIS, Phytochemical and Molecular Techniques (as Co PI) NEC 2013-15
2. Preventing extinction and improving conservation status of threatened  plants through application of biotechnological tools  (as PI) DBT 2012-17
3. Developing a digital database on Bioresources of North East India: Through network approach among NE states (as PI) DBT 2012-14
Topic Funding Agency Year
Botanical Ecological Survey of Medicinal Plant Conservation areas in Arunachal Pradesh” (UNDP funded project) APSMPB, Govt of Arunachal Pradesh 2011-2013
Survey and Evaluation of Pharmaceutical Potential Medicinal plants in North east India.  NIPER, Mohali 2007-2008
Topic Funding Agency Year
1. Studies on Diversity Taxonomy and population status  of Endemic medicinal plants for promotion of Conservation (as PI) NEC Shillong 2011-13
2. Study on species diversity of Primula in the eastern Himalaya, North East India (as PI) ATREE 2010-13
3. Assessment of population structure and regeneration pattern of most preferred food plant species of Hoolock Gibbons in protected areas of Northeast India (as co PI) CSIR 2010-13
4. Documentation and Conservation of wild edibles, aromatic plants of Arunachal Pradesh and adjoining state of the Region. (as co PI) NEC Shillong 2011-14
5. Computational and biochemical approaches for in-silico screening and discovery of drug-like leads: Antidiabetic and antihypertensive compounds from Clerodendron spp. occurring in N E India (as co PI) DBT 2012-13
6. Forest based Cottage Industries in Arunachal Pradesh and to Formulate Strategies for promoting Institute – Industry and Community Linkage for Technology Dev. and Transfer (as PI) DST, New Delhi 2009-2011
7. Studies on Diversity & Taxonomy of Piper species of North East India. (under Fast Track scheme of DST)    (as PI)                 DST, New Delhi 2003-2006
  • Natural member of Eastern Himalayan Association for Spermatophyta Taxonomy
  • Life member of Indian Association of Angiosperm Taxonomy (IAAT)
  • Life member of Association of Plant Taxonomy (APT)
  • Life member of Society of Ethnobotanist, India (SEB)
Title Course Code Module Semester
Nursery & plantation Management FR 8008   Ph. D I/II
Forest Systematic & Ethnobiology FR 7101 PG I
Dendrology FR 4103 Degree I
Forest Nursery Mang FR 4105 Degree I
Forest Policies & planning FR 5204 Degree II
Tribal studies & Etnobotany FR 4204 Degree II
Title of Project Names of Students
M. Sc. Students  
1. Herbal remedies used by the Meitei Community of Manipur, Economic analysis and management practices. Mr. Sivakanta P.
2. Present status of Bamboo Culm Marketing in Two Capital Cities of North east India. Mr. Satyabrata
3. Studies on utilization pattern and economic potential of wild edible plants of Phek district of Nagaland.  Ms. Melhitso-u Wetsah
4. Comparison of morphological characters of fruit and seeds of Leguminosae plants occurring in Itanagar area. Ms. Taw Yallar
5. Status diversity distribution and economic potential of Medicinal plants of Eastern Arunachal Pradesh. Mr. Techi Begi
6. Studies on utilization, marketing and management of three highly potential NTFPs in Western Arunachal Pradesh. Mr. Bibhuti Ranjan Gogoi
7. Ethnobotany species of Sherdukpen tribe in West Kameng of Arunachal Pradesh with special reference of ethnomedicinal Plants. Mr. Lobsang Tashi Thungon
8. Utilization pattern of NTFPs by Rongmei community of Tamenglong district, Manipur. Mr. Robert Panmei
B. Sc. Students
9. Study on ethno-medico-botany of Apatani tribe of Arunachal Pradesh. Mr. Zulukumzuk Pongen
10. Study of Ethnomedicinal aspects of Tangkhul Tribe of Manipur. Ms. Soyala Kashung
11. Wild edible plants of Kohima district of Nagaland with reference to medicinal plants used. Ms.Tiajungla Walling
12. Documentation of Weed flora of NERIST campus. Ms. Rekha Rani Das
13. Status of Social Forestry Plantation in Itanagar area of Arunachal Pradesh. Mr. Tade Tadeng
Topic Scholar Name Status of PHD Registration Year
Taxonomic studies on Tree flora of Papum Pare district of Arunachal Pradesh with reference to Locally utilized species      Dr. Bhabajeet Doley Awarded 2007
Studies on non timber forest products and associated indigenous knowledge system of Apatanis in Arunachal Pradesh Ms. Bamin Yakang Awarded 2007
Ethnobotanical Study on tribes of DehangDebang Biosphere reserve of Arunachal Pradesh with particular reference to Medicinal plants. Mr. Rajiv Kagyung Awarded 2008
Distribution pattern, population structure and Phenology of Piper betleoides C. DC Mr. HemenHazarika Awarded 2008
Studies on Taxonomic diversity Utility and Socioeconomic status of family Moraceae in Arunachal Pradesh  Mr.Rubu lBuragohain Awarded 2009 2011
Diversity and Population structure of a few selected species of Primula L. in  Arunachal Pradesh Mr. Amal Bawri Awarded  
Studies on Ethnomedicinal plants and  healing practices used for malaria and jaundice by the tribes of Nagaland North east India     Mr. Prem Kumar Under submission 2010
Cross-culture ethnobotany among Zeliangrong tribe of Manipur, India Mr. Robert Panmei Registered 2013
Population status, mapping and habitat suitability, analysis of Homalomena aromatic Schott. In Arunachal Pradesh India. Mr. Kh. Ronald Registered 2013
Taxonomic diversity, distribution and resource values of climbing species occurring in Papumpare district of Arunachal Pradesh, India. Ms. Soyala Kashung Registered 2014
Course Name Sponsored By Date
Programme on Remote sensing and GIS application in Natural Resource management  TEQIP TEQIP 1 week
Training course on Bioinformatics: A practical approach in Genomics & proteomics NEHU, Shillong Sept 26-29, 2011
Short term In house Training Programme on Teaching Methodology. NITTTR, Kolkotta Jan. 3-7,  2011
International Workshop on Molecular Systematic of Flowering plants.  Univ. of Delhi Oct 5-10, 2009
Short term Training on Innovative Food Processing Technologies for Food Security NERIST March 16-20, 2009
Short term Training Behavioural Competancy Development: Psycological Aspects. NERIST March 23-27, 2009
Workshop / Training programme on Research methodology. NERIST, Itanagar March 20 - 24, 2006
Training course on Ethnobotanical Survey and Medicinal Plant for Sustainable utilization of Plant Resources and Development of N. E. Region CDRI, Lucknow. March. 19-24, 2001
Workshop on Methods and Approaches in Plant Taxonomy Organized by NBRI, Lucknow. Oct 26- Nov 7, 1999
Conference Name Sponsored By Date
Workshop on Standardizing the cultivation and harvesting methods of NTFPs for their sustainable management in the State of Arunachal Pradesh. NAEB, Govt. of India 6th – 8th May, 2011,  NERIST
Training programme to the farmers on Potential NTFPs and its sustainable management. DST, Govt. of India. 24th March, 2011, VVK Chessa
Consultative workshop on Voices from high altitudes: Mainstreaming in State Action Plan on Climate Change (SAPCC) in Arunachal Pradesh WWF India, New Delhi 26 Feb., 2011, NERIST
Regional seminar on A long way to go for Empowering the people of Arunachal Pradesh, Economically for its sustainable growth.  ICSI, Kolkatta  19th Dec 09, NERIST
National Seminar on Agroforestry for socio economic development of North eastern region. NEC Shillong 11-12th Dec.,2009, NERIST
Workshop on "Prospects of NTFP Certification and Sustainable NTFP Management" IIFM Bhopal & RCDC, Bhubaneshwar 28-30th   May, 2008 NERIST
Regional Workshop cum Seminar on ‘’Bamboo resources of N E India: Adoption of suitable Cultivation techniques for Socio economic development of poor people’’ NEC,  Shillong 15th 16th  Dec., 2007 NERIST
Title Place Date
Ecological Characters and Forest types of Namdapha NP and its adjacent areas in consultative workshop on BSL GBPHIED, Itanagar with ICIMODE Jan 3rd 2013
Current Status of medicinal plants sector of Arunachal Pradesh  in Consultative meeting on threat assessments of medicinal plant IAIM -FRLHT Bangalore Nov 16, 2012
Common Potential Forest Resources for Socioeconomic Upliftment  of the Rural People of Assam & Arunachal Pradesh Dept of botany, Chaiduar college, Gohopur Assam March  2012
Field methods of plant collection in ToTprogramme for Field Botanist under UNDP GOI-GEP programme on conservation of medicinal plants. FRLHT Bangalore with  SMPB, Itanagar May 11, 2011
R & D Activities of Piper species in the northeast region: A review in  Consultative meeting on Prospects and Potential of Piper species in North East India IBSD, Imphal  March 12, 2011
High value and RET medicinal plants of Arunachal Pradesh.  In consultative meet Finalaization of the list of of GSMP and MPCA  in three Indian State Under UNDP GOI  projects. FRLHT-IAIM, Bangalore Sept 27, 2010
Collection and Identification of plants in National Workshop on Field Work in Environmental studies. Dept of Biology Dhing college, Assam. Feb 18, 2010
Methods of Numerical Taxonomy  in short term Training on Bioinformatics  BIF centre  RGU, Rhono Hill, Itanagar 4th March,2008
  1. Gajurel P. R., Rethy, P., Kumar, Y. & Singh, B. 2008.Piper species of North East India- Arunachal Pradesh: BSMPS, Dehradun. (Total pg 202with 43 figures and 30plates). ISBN: -978-81-211-0533-0
  2. Buragohain R., Gajurel, P. R.& Rethy, P. 2014.  Diversity and taxonomy of Moraceous species in the state of Arunachal Pradesh, India. Scholar Press, Germany,  p 205. ISBN: 978-3-639-71491-3.
  1. Deepanita Devi  W.,  Gajurel P. R.  & Rethy,  P. 2016. Bisexuality in dioecious male plant: An unusual phenomenon of sex expression in Piper species  Int. J of Plant Reproductive Biology. 8(1):82-86.
  2. Bawri, A., Gajurel, P. R. & Khan, M. L. 2015.  Rediscovery of Primula polonensis. Kew Bulletin, 70: 56 (Online published DOI 10.1007/S12225-015-9605-6).
  3. Premkumar, N. Gajurel, P. R., Panmei, R. & Rethy, P. 2015. Indigenous healing practices and ethnomedicinal plants used against Jaundice by some Naga tribes in Nagaland, India. Pleione, 9(1): 40-48.
  4. Tamuly, C., Hazarika, M., Bora, J., Bordoloi, M., Boruah, M. P., & Gajurel, P. R. 2015. In vitro study on antioxidant activity and phenolic content of three Piper species from North East India. Journal of Food Science and Technology, 52(1), 117-128.
  5. Premkumar N. Gajurel, P. R. & Rethy P. 2015. Ethnomedicinal value of some traditional foods plants uses by Zeling Tribes of Nagaland. Indian Journal of Traditional Knowledge, 14(2): 298-305.
  6. Gajurel, P. R. & Bamin, Y. 2015. Traditional utilization of plants in festivals, rituals and their conservation by Apatani Tribe of Arunachal Pradesh, North East India. International Journal of Conservation Science, 6(2): 189-200.
  7. Paul, A. Gajurel, P. R. & Das, A. K. 2015. Threats and conservation of Paris polyphylla an endangered, highly exploited medicinal plant in the Indian Himalayan Region. BIODIVERSITAS, 16(2): 295-302.
  8. Gajurel, P. R., Ronald, K.H, Buragohain, R. Rethy, P. 2015.  Diversity and population status of high value medicinal plants with phytosociological characters of Indian Eastern Himalaya: An approach to conservation. Journal of Threatened Taxa, 7(6): 7243-7252.
  9. Bawri, A., Gajurel, P. R, Paul, A. & Khan, M. L. 2015. Diversity and Distribution of Primula species in Western Arunachal Pradesh, Eastern Himalayan Region, India.Journal of Threatened Taxa, 7 (1): 6788-6795.
  10. Buragohain, R., Gajurel, P. R., Rethy, P. & Singh, B. 2014. Ficusvariegata Blume (Moraceae) – A new record from Arunachal Pradesh, India. Journal of the Bombay Natural History Society. 111(2): 148-149.
  11. Buragohai. R, Gajurel P. R, Rethy P. & Kalita B.2014. Ficusgeocarpa (Moraceae) A new record for India. Rheedea, 24(2): 110-112.
  12. Brahma J Singh, B., Rethy, P. & Gajurel, P.  R. 2014.Nutritional analysis of some selected wild edible species consumed by the Boro tribes of Kokarajhar district, BTC, Assam, Asian journal of pharmaceutical & Clinical Research, 7(3): 34-38.
  13. Tamuly, C., Buragohain, R., Hazarika, M., Bora, J., & Gajurel, P. R. 2015. Assessment of antioxidant activity of six Ficusspecies—underutilized fruits from Arunachal Pradesh in North East India. International Journal of Fruit Science15(1), 85-99
  14. Chowdhury, U., Tanti, B., Rethy, P., & Gajurel, P. R. 2014. Analysis of genetic diversity of certain species of Piper using rapd-based molecular markers. Applied biochemistry and biotechnology, 174(1): 168-173.
  15. Hazarika H., Gajurel P. R. & Rethy P. 2014. Phytosociological analysis of Piper betleoidesc. DC. an endemic species of Indian Eastern himalayas, arunachal Pradesh. International Journal of Recent Scientific Research, 5(9): 1560-1570.
  16. Panmei, R. Gajurel, P. R. Singh, B. & Rethy, P. 2014. Utilization pattern of NTFPs by Rongmei tribe of Manipur, north east India. Journal of non timber forest products, 21(1): 9-24.
  17. Bawri, A., Gajurel, P. R. & Khan, M. L. 2014. Primula lacerata (Primulaceae) - a rare species and addition to the flora of India from East Himalayan Region. Rheedea, 24 (1): 32-35.
  18. Bawri, A., Gajurel, P. R. & Khan, M. L. 2014. New distributional records of Primula species in Arunachal Pradesh, India. Bioscience Discovery, 5(2):6-10.
  19. Tamuly, C., Hazarika, M., Bora, J. & Gajurel, P. R. 2014. Antioxidant Activities and Phenolic Content of Piper wallichii (Miq.) Hand.-Mazz. International Journal of Food Properties17(2), 309-320.
  20. Doley, B., Gajurel, P. R., Rethy, P., & Buragohain, R. (2014). Uses of trees as medicine by the ethnic communities of Arunachal Pradesh, India. Journal of Medicinal Plant Research8(24), 857-63.
  21. Bamin, Y., Gajurel, P. R., Postungbam, S. & Bhuyan, L. R. 2013. Account of some commonly and traditional NTFP used by Apatani tribes of Arunachal Pradesh, India. Pleione, 7(2):514-529.
  22. Bawri, A., Gajurel, P. R. & Khan, M. L. 2013. Record of Primula waltonii Watt ex Balf. f.from Arunachal Himalaya with taxonomic notes. Pleione, 7(1): 262-265.
  23. Sharma, K., Kumar, A., Krishna, C. M, Tripathi, O.P.  & Gajurel, P. R. 2013. First Ground Feeding Observation on Corn (Zea mays) by Eastern Hollok Gibbon. Current Science, 104(5): 587-588.
  24. Saikia, B., Rethy, P., Gajurel, P. R., & Doley, B. 2012. Exotic wild edible plants of Sonitpur district, Assam. Journal of Biosciences Research,3 (1):71-75.
  25. Buragohai, R. Gajurel, P. R., Rethy,  P. & Singh, B. 2012. Ficus conglobata King A rare and lesser known species from Arunachal Pradesh. Pleione, 6(2): 415-419.
  26. Gajurel, P. R., Doley B. & Rethy, P 2012. Bauhinia Roxburghii Voigt.  (Caesalpiniaceae): A new record for NE India. Pleione, 6(1): 238-241.
  27. Saikia B., Doley, B., Gajurel, P. R. & Rethy, P. 2010. Traditional uses of flower as food in Sonitpur district of Assam and Papumpare district of Arunachal Pradesh. Ethnobotany 22(1&2): 121-124.
  28. Doley, B., Gajurel, P. R., Rethy, P. & Singh, B. 2010. Floristic composition of NERIST campus, Nirjuli, Arunachal Pradesh-A checklist and uses, Pleione, 4(1): 8 - 16.
  29. Doley, B., Gajurel P. R., Rethy, P. & Saikia, B.2010. A check list of commonly used plant species by the Nyshi tribes of Papumpare District, Arunachal  Pradesh.  J. Bio Sci. Res 1(1): 9-12.
  30. Doley, B., Gajurel, P. R., Singh, B., Buragohain, R. & Potsangbam, S. 2010. Lesser known Ethno medicinal Plants Used by the Nyshi community of Papumpare District, Arunachal Pradesh. J. Bio Sci. Res 1(1):34-36
  31. Rethy, P., Singh, B., Kagyung, R. & Gajurel, P. R. 2010. Ethnobotanical studies of Dehang-Debang Biosphere Reserve of Arunachal Pradesh with special reference to Memba tribe. Indian Journal of Traditional Knowledge, 9(1): 61-67.
  32. Kagyung, R., Gajurel, P. R., Rethy, P. & Singh, B. 2010. Ethnomedicinal plants used for gastro-intestinal diseases by Adi tribes of Dehang-Debang Biosphere Reserve in Arunachal Pradesh. Indian journal of Traditional Knowledge9(3): 496-501.
  33. Pangging G.Arunachalam, A. & Gajurel, P. R. 2009. Community forestry – linking conventional and nonconventional forest areas for sustainable development. Current Science, 97(7): 981.
  34. DoleyBhabajit, Gajurel P. R., Rethy, P., Singh, B. & Hazarika, H. 2009. Ethnomedicinal uses of Cinnamomum Sch. (Lauraceae) by the ethinic communities of Arunachal Pradesh. Pleione, 3(1): 9-12.
  35. Sing, B., Rethy, P. Hazarika, H., Gajurel, P.R. & Kagyung, R. 2008. Wild Edible Plants and its Commercial Potential: A case study from Itanagar area of Arunachal Pradesh. Journal of Non Timber Forest Products, 16(2): 139-144.
  36. Gajurel, P. R., Rethy, P. &Kumar, Y. 2007. A new species of Piper from Arunachal Pradesh, North east India. Rheedea,17(2): 37-39.
  37. Angami, A., Gajurel, P. R., Rethy, P., Singh, B. & Kalita, S. K. 2006. Status and potential of wild edible plants of Arunachal Pradesh. Indian Journal of Traditional Knowledge5(4), 541-550
  38. Gajurel, P. R., P. Rethy, Singh, B. & Angami, A.2006. Botanical studies on Adi tribes in DihangDibang Biosphere Reserve in Arunachal Pradesh, Eastern Himalaya, Ethnobotany 18(1&2): 114-118.
  39. Rethy, P., Handique, P., Singh, B., Sood, K. K. Gajurel, P.R. & Angami, A. 2006. Bamboo species of Arunachal Pradesh with special reference to utilization pattern and cultivation practices in West Siang district, Journal of Non Timber Forest Products, 13(1).  1-7.
  40. Gajurel, P. R., Bora, P. J., Sarmah, A., & Muthu, J. 2006. Present status and conservation aspects of Amentotaxusassamica: a rare and critically endangered Gymnosperm occurring in Arunachal Pradesh, Eastern Himalaya,Phytotaxonomy (6): 39-44
  41. Gajurel, P. R., Rethy, P., Kumar, Y. & Singh B. 2003.Numerical taxonomic studies on some species of Piper L. (Piperaceae) of North East India. Rheedea 12 (2): 107-122.
  42. Gajurel, P. R., Rethy, P. & Kumar, Y. 2001. Piper haridasanii a new species of Piper from Arunachal Pradesh North East, India Journal of Economic and Taxonomic Botany, 25 (2): 293-296.
  43. Gajurel, P. R., Rethy, P. & Kumar, Y. 2001. A new species of Piper from Arunachal Pradesh, North East India.  Bot J. of Linnaean. Society. 137: 417-419.
  44. Gajurel, P. R., Rethy, P. & Kumar, Y. 2000.Piper acutistigmum C. DC. (Piperaceae) a new record for India from Arunachal Pradesh.Rheedea10 (2): 139-141.
  45. Gajurel, P. R. & Rethy, P. 1998. Piper species of Arunachal Pradesh and its potential for development as a commercial crop in the state.  Arunachal Forest news, 16 (1 & 2): 32-37.
  46. Gajurel, P. R., Rethy, P. & Kumar, Y. 1998. Piper lonchites Roem & Sch: A lesser known species of Piper from Arunachal Pradesh, India. Journal of Economic and Taxonomic Botany., 22 (3): 731-733
  1. Gajurel, P. R., Rethy, P., Kumar, Y. & Singh B. 1999. Taxonomic problems and distribution of Piper species of North East India with special references to Arunachal Pradesh. In Sivadasan, M. & Mathew, P (eds.) Biodiversity, Taxonomy & Conservation of Flowering plants. Mentor Books, Calicut, India. BSMPS, Dehradun, India.  pp. 57-68. (Proceeding of IAAT conference 1998).
  2. Gajurel, P. R., Rethy, P. & Kumar, Y. 2002. The genus Piper in Arunachal: A systematic Profile. In A. P. Das (ed.) Perspectives of Plant Biodiversity.  pp. 102-124. (Proceeding of IAAT conference  2001)
  3.  Gajurel, P. R., Rethy, P., Kumar, Y. & Singh, B. 2003. Importance of Systematic Investigation for Proper Utilization and Cons. of Piper species of NE India. In Gian Sing et al., (eds.) Ethnomedicine of North-East India. NISCOM, CSIR. pp. 305-313.
  4. Singh, B., Rethy, P., Sood, K. K., Handique, P.  & Gajurel, P. R. 2006. Enhancing agroforestry system for sustainable land use and development in Arunachal Pradesh. In Shrivastava et al., (ed) proceeding of National Seminar on Land Resource Management for Sustainable Development RWD. pp 126-133.
  5. Gajurel, P. R., Rethy, P. & Singh, B. 2007. Wild edible plants of    Dehang Debang BR in Arunachal. In Das &Pandey (eds) Advances in Ethnobotany.   BSMPS, Dehradun, India   (Proceeding of IAAT conference 2000)
  6. Hazarika, H., Rethy, P., Singh, B., Gajurel, P.R., Doley, B. & Buragohain, R. 2009. Agro forestry System in Arunachal Pradesh: Potential and prospects for Sustainable land use management. In Singh et al., (eds.) Proceeding of national seminar on Agroforestry for Socioeconomic Development of North eastern Region. pp.116-123.
  7. Saikia, B., Rethy, P., Gajurel, P.R. & Hazarika, H. 2009. Importance of agro forestry in watershed management in the Sunitpur District Assam. In Singh et al., (eds.) Proceeding of national seminar on Agroforestry for Socioeconomic Development of North eastern Region. pp.59-63.
  8. Handique, P., Rethy, P.,Singh, B.,  Gajurel, P. R., Dutta, B. K. & Das,  A. 2009. Role of bamboo resources in socio economic development of the tribal people of Arunachal Pradesh. In Singh, et. al., (eds.) Proceeding of national seminar on “Agroforestry for Socioeconomic Development of North eastern Region”. pp.104-115.
  9. Hazarika, H., Rethy, P., Singh, B., Gajurel, P. R . & Doley , B. 2009. Prospects of Growing Biodiesel plants in Arunachal Pradesh. In Lingfa, P. (ed) Proceeding of regional seminar on “Bio fuels in North East India: Issue and Prospects.
  10. Gajurel P. R. 2010. Plant collection, preservation and identification. In Nath S K (ed) Proceeding of the National workshop on Field Work in Environmental Studies. pp.13-17.
  11. Kalita, J., Singh, S. S., Gajurel, P. R. 2012. Clerodendrum viscosum Vent. An ethnomedicinally important plant of north east India. In Singh, K. B. et al., (eds) Recent Advances in Natural Product Research. pp.52-58.
  1. Gajurel, P. R., Rethy, P. & Singh, B. 2000. The genus Piper L in North East India:  Species Diversity, Taxonomy, and its Potential for Commercialization. In  Arunachalam, A. &  Khan, M. L. (eds.) Sustainable Management of Forest-India.  IBD, Dehradun, India.  pp 65-76.
  2. Gajurel, P. R., Rethy, P. & Singh, B. 2000. Economic importance of Piper species of North East India and its potential for introduction in Agroforestry systems. In Rethy, P. et al (eds) Forest Conservation and Management.  IBD, Dehradun, India. pp 489-495.
  3. Rethy, P., Singh, B., Angami, A., Gajurel, P. R. & Handique. 2009. Edible fruits in Arunachal Pradesh: Utilization pattern and marketing status. In S. C. Tiwari (ed)   Ethnoforestry: The Future of Indian Forestry.  BSMP, Dehradun, India.  PP: 203-220
  4. Gajurel, P. R. & Rethy, P. 2009. Status and application of Ethnoforestry in sustainable Forest management and community development. In Tiwari, S. C eds. Ethnoforestry: The Future of Indian Forestry.  BSMP, Dehradun, India. PP: 1-8
  5. Gajurel, P. R. 2011. Species diversity and utility potential of Piper species of North east India. In Barua, A & Nath S. C. (eds) Aromatic & Spice plants: Utilization and Conservation.  Aviskar Pub Jaipur, India.  pp-57-69.