Later he went to Bodh Gaya accompanying Mrs. Charlotte Sevier. In 1909, he stayed for sometime in the house of Sureswar Sen in Bishnupur, Bankura and inspired the family with the ideals of Sri Ramakrishna and Swami Vivekananda. The Holy Mother Sri Sarada Devi also stayed several times in the house of Sureswar Sen. Sen's younger brother Basiswar Sen, a renowned scientist, became a devoted follower of Swami Sadananda. Sadananda was afflicted with diabetes and also suffered from asthma. He was confined to bed for around two years. The Holy Mother Sri Sarada Devi came to visit him during his illness on 25 November 1910. When Swami Sadananda was ill and was in his deathbed, Basiswar Sen and his cousin nursed him diligently. Swami Sadananda died on 18 February 1911, in Calcutta. An article in Prabuddha Bharata was written as an obituary to him which stated, "There was no work so hard, no difficulty so insurmountable, no word of command so impracticable, that he could not carry into effect for the sake of Swami Vivekananda." Contribution Swami Sadananda played an important role in the early history of the Ramakrishna movement through his twin ideals of service and renunciation. He was one of the leaders of Ramakrishna Mission in rendering service to the poor and affected in the early days. He helped Swami Ramakrishnananda in establishing the Ramakrishna Math in Madras. Sadananda played a leading role in carrying out plague relief activities in Calcutta in 1898–99. As part of his efforts to eradicate the disease, he even cleaned the streets and slums along with a group of volunteers and coordinated the relief effort. He also rendered valuable service in the plague relief operations in Bhagalpur in 1904. He also helped in shaping the ideals of Sister Nivedita and in her work to promote education among Indian women by familiarizing her with the traditional customs of India, by introducing her to the local people and by bringing the first three girls who joined her school. Sister Nivedita acknowledged in her letter to Sara Bull that Swami Sadananda was her greatest strength in her dealings with children of the school. She also acknowledged in a letter that whatever success she achieved, she owed it to the inspiration and strength of Swami Sadananda. He searched for and found several poor children for Nivedita's school. Even after Sister Nivedita formally relinquished her association with Ramakrishna