On 2 May 1921, the Savarkar brothers were moved to a jail in Ratnagiri.During his incarceration in Ratnagiri jail in 1922, he wrote his "Essentials of Hindutva" that formulated his theory of Hindutva. On 6 January 1924 was released but confined to Ratnagiri District.Soon after he started working on consolidation of Hindu society or Hindu sanghatan. The colonial authorities provided a bungalow for him and he was allowed visitors. During his internment, he met influential people such as Dr. Ambedkar, and Mahatma Gandhi. Gandhi's assassin, Nathuram Godse also met him for the first time as a nineteen year old in 1929.Savarkar became a prolific writer during his years of confinement in Ratnagiri. His publishers, however, needed to have disclaimer that they were wholly divorced from politics. Savarkar remained confined to Ratnagiri district until 1937. At that time, he was unconditionally released by the newly elected government of Bombay presidency.

முஸ்லீம் லீக் கட்சியுடன் கூட்டு
Clemency Petitions
தன் வரலாறு நூல்
Restricted freedom in Ratnagiri