Question
How many prominent and most accepted commentaries are there on the Bhagavad-Gita?
Answer
Well, I'm aware of thirty-three commentaries on the Bhagavad-Gita:
Achintya-Bheda-Abheda Vedanta
• Sarartha Varsini Tika, Vishvanatha Chakrabarti Thakura's commentary on the Bhagavad-Gita. You can read it in English here.
• Gita Bhusana, Baladeva Vidyabhusana's commentary on the Bhagavad-Gita. You can read it in English here.
• Satyanarayan Das Babaji's commentary on the Bhagavad-Gita. You can buy it in English here.
• Bhagavad-Gita As It Is, A.C. Bhaktivedanta Swami Prabhupada's commentary on the Bhagavad-Gita. You can read it in English here.
• B.R. Sridhara Maharaj's commentary on the Bhagavad-Gita. You can read it in English here.
• Bhaktivinoda Thakura's commentary on the Bhagavad-Gita. You can read it in English here.
Advaita Vedanta
• Adi-Shankaracharya's commentary on the Bhagavad-Gita. You can read it in English here.
• Bhavartha Dipika, Dhyaneshwar's commentary on the Bhagavad-Gita. You can read it in English here.
• Gutharta Dipika, Madhusudana Saraswati's commentary on the Bhagavad-Gita. You can buy it in English here.
• The Holy Geeta, Swami Chinmayananda's commentary on the Bhagavad-Gita. You can read it in English here.
• Geeta Rahashya, Bal Gangadhara Tilak's commentary on the Bhagavad-Gita. You can read it in English here.
• Swami Sivananda's commentary on the Bhagavad-Gita. You can read it in English here.
• Swami Chidbhavananda's commentary on the Bhagavad-Gita. You can read it in English here.
• Sarvepalli Radhakrishnan's commentary on the Bhagavad-Gita. You can read it in English here.
• Discourses on the Gita, Mohandas Gandhi's commentary on the Bhagavad-Gita. You can read it in English here.
• Talks on the Bhagavad-Gita, Vinod Bhave's can on the Bhagavad-Gita. You can read it in English here.
Shuddhadvaita Vedanta
• Sridhara Swami's commentary on the Bhagavad-Gita. You can buy it in English here.
Dvaita Vedanta
• Madhvacharya's commentary on the Bhagavad-Gita. You can read it in English here.
• Jayatirtha's commentary on the Bhagavad-Gita. You can buy it in Sanskrit here.
• Raghavendratirtha's commentary on the Bhagavad-Gita. You can buy it in Sanskrit here.
Integral Yoga
• Essays on the Gita, Sri Aurobindo's commentary on the Bhagavad-Gita. You can read it in English here.
Kashmiri Shaivism
• Gitartha Sangraha, Acharya Abhinavagupta's commentary on the Bhagavad-Gita. You can read it in English here.
Kriya Yoga
• God Talks with Arjuna: The Bhagavad-Gita, Paramahamsa Yogananda's commentary on the Bhagavad-Gita. You can buy it in English here.
Shivadvaita Vedanta
• Srikantha Sivacharya's commentary on the Bhagavad-Gita.
Svabhavika-Bheda-Abheda Vedanta
• Yadava Prakasha's commentary on the Bhagavad-Gita.
Vishishtadvaita Vedanta
• Swami Ramabhadracharya's commentary on the Bhagavad-Gita. You can read it both in Sanskrit and Hindi in a set of two volumes here and here.
• Ramanujacharya's commentary on the Bhagavad-Gita. You can read it in English here.
• Muktananda Swami's commentary on the Bhagavad-Gita.
• Gopalananda Swami's commentary on the Bhagavad-Gita. You can read it in English here.
Miscellaneous:
• My Gita, Devdutt Pattnaik's commentary on the Bhagavad-Gita. You can buy it in English here.
• Bhagavad-Gita: A Text & Commentary for Students, Jeanne Fowler's commentary on the Bhagavad-Gita. You can buy it in English here.
• Exploring the Bhagavad-Gita: Philosophy, Structure and Meaning, Ithamar Theodore's commentary on the Bhagavad-Gita. You can buy it in English here.
• F. Edgerton's commentary on the Bhagavad-Gita. You can buy it in English here.
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