Professor Parmeshwar Narayan Shastri is a Sanskrit scholar who edited an edition of the श्रीमद्भगवद्गीता (Srimad Bhagavad Gita), published by Central Sanskrit University, Delhi. His volume presents the main text with the 'Gudhartha Dipika' commentary by Madhusudana Saraswati and the 'Tattvaloka' explanation by Dharma Datta Sharma.