Teaching experience of nearly 40 years in colleges and university. 

Overall teaching experience in Post-graduate classes is 24 years: from 1990 to 1995 in Cotton College & from Feb'1995 onward in Gauhati University

1. The Plasma Spectroscopic study of Dergaon Meteorite, India (2020): Molecules; Vol. 25 (4); 984

2. Monazite and Xenotime U-Th-Pb total ages from Basement rocks og the (Central) Shillong-Meghalaya Gneissic Complex, Northeast India (2018): Journal of Earth System Science; 

3. Geochemical Characteritics of Tukreswari and Borbhita Granitoid in Goalpara District, Assam (2017): Jour. of Geological Society of India; Vol. 89, pp.532-540

4. Petrology of the Umpyrtha-Patharkhammah Metapelites, Meghalaya in Northeast India (2015): Jour. of Assam Science Society; Vol. 56; pp.61-74

5. Late Cambrian Reworking of Palaeo-Mesoproterozoic Granulites in Shillong-Meghalaya Gneissic Complex (Northeast India). Evidence from PT Pseudosection Analysis and Monazite Chronology and Implications for East Gondwana Assembly (2011): The Journal of Geology; Vol. 119(3); pp.311-330

6. Geochemistry of Basic Granulites from Goalpara District of Western Assam, India (2008): Memoir Geological Society of India; No. 73; pp.173-196

7. Petrology of Granulites from Shillong Plateau in West Garo Hills District, Meghalaya, India ((2008): Jour. of Nepal Geological Society; Vol. 37; pp.1-10

8. Mesoproterozoic Granulites of the Shillong-Meghalaya Plateau: Evidence of westward continuation of the Prybz Bay Pan African Suture into Northeastern India (2007): Precambrian Research; Vol. 152; pp.1-26

9. Dergaon (H5) chondrite: Fall, classification, petrological and chemicl characteristics, cosmogenic effects and noble gas records (2005): Meteoritic & Planetary Science

10. Compositional characteristics of charnockites and basic granulites in the transitional granulite terrain around Satnuru in Southern Karnataka (2005): Bulletin of Pure and Applied Science; 21F; 2; pp.65-71

11. Study of mineral reaction and paragenesis of rocks of the gneissic complex around Agia in Goalpara District, Assam (1999): Journal of Geoscience; 4; pp.1-10

12. Preliminary report on Dergaon Meteorite (2001): Meteoritical Bulletin

13. Structural style of the gneissic rocks in and around Umananda river island, Guwahati, Assam (1997): Indian Mineral Society; 1; pp.193-198

14. Polyphase deformation and fold geometry study around Nolonga hills, Goalpara district, Assam ((1994): Journal of Earth Science; 21; pp.236-296

15. Carbonic fluid inclusion in granulites from  high grade terrains near Satnaru, Karnataka, India (1991): Jour. of Assam Science Society; 33; pp.33-40

16. Compositional characteristic and phase equilibrium in the Manganiferous Iron Formation in the high grade terrain near Satnaru, Karnataka, India (1990): Journal of Metamorphic Geology; 8; pp.525-538

17. Fe-Mg mixing in cordierite: Constraints in the natural data and implication of Cordierite -Garnet geothermometry in granulites (1988): the American Mineralogist; 73; pp733-744

18. Garnet + 2 Sillimanite = 3 Mg-spinel + 5 Quartz equilibria -  a potential geobarometer (1986): Jour. of the Geological Society of India

Significance of Shillong Plateau (Northeast India) in the Palaeogeographic reconstruction of Gondwana Supercontinent, Northeast India (2020): Physical Landscape and Environment (in press); by Eastern Book House.