Swami Tyagananda is a Hindu monk of the Ramakrishna Order and presently the head of the Ramakrishna Vedanta Society in Boston. Currently he is also the Hindu chaplain at MIT and Harvard.
Ashtadhyayi by Sri NCT Acharya
Kavyapatha by Prabhakara Sarma
Chapter 16 - Bhagavad Gita by Karnam Aravinda Rao
Gita - Kartavyam by Ammu Annaji Rao (Telugu)
Bhagavad Gita by Prof Mahadevan