- 'Bhuswata, Rajah-Niti Aru Asomiya Raiyat', Arun Chandra Memorial Lecture, Jorhat, 2009.
- 'Unabimsha Satikar Asomar Samajik Itihash Aru Ram-Nabamir Enraji Anubad', Gariyashi, 2008.
- 'Adhunik Asomor Itihas Charcha, Chetana Aru Gabesonar Parampara: Ek Parambhik Alochana' 1826-1955, Bhumi, 2008.
- 'Patharughator Ran aru Upanibeshik Samal', Katha Guwahati, April, 2008.