Study on the life and philosophy of Kundakunda, 2nd cent. Jaina exponent and his works.

On the life and philosophy of Madhusūdana Sarasvatī with special reference to Advaitaratnarakṣaṇa, apologetic work on Advaita philosophy.

Study on knowledge and logic in Nyaya and Vaiśeṣika philosophy with comaparative aspects of Vedanta and Buddhist philosophy.

Contributed articles on Śaṅkarācārya, Hindu philosophy, and religious life.