Shashi’s father Ishwara Chandra Chakravarty was an expert in ritualistic worship, and Shashi imbibed from him love for ritualistic worship. After passing out of the village school, he went to Kolkata and lived with his cousin Sharat (later, Swami Saradananda) for higher education. A brilliant student, he chose mathematics for the B.A. course which, however, he could not complete owing to the terminal illness of Sri Ramakrishna at Cossipore.

While studying in college Shashi and Sharat joined the Brahmo Samaj, and heard about Sri Ramakrishna from Keshab Chandra Sen himself. In October 1883 they visited Dakshineswar and were deeply attracted to Sri Ramakrishna. The Master used to say that Shashi and Sharat had been the followers of Jesus Christ in their previous birth.

He seldom went out on pilgrimage, and devoted himself to daily worship at the Math. But when Swami Vivekananda, after his return from the West, asked him to go to Chennai and open a branch centre of Ramakrishna Math there, he obeyed without any hesitation. The saga of sacrifice and hardship that he underwent in preaching the message of Sri Ramakrishna and Swami Vivekananda for 14 years under unfavourable conditions has been recorded in letters of gold in the annals of the Ramakrishna Movement. In the South he travelled extensively. The starting of centres in Trivandrum, Mysore, Bangalore and Mumbai owed much to his pioneering efforts.

Incessant work, however, told upon his health, and he contracted tuberculosis. He breathed his last in a state of ecstasy on 21 August 1911.

Source: https://belurmath.org/swami-ramakrishnananda/