Five major celebrations are held every year. These are day-long programmes. Thousands of devotees participate and take prasad (Consecrated food).

Birthday of Sri Ramakrishna. This is celebrated according to the Visuddha Siddhanta Panchika, an Indian almanac. It falls on Phalguna Shukla Dvitiya, the second day after the new moon day in the month of Phalguna (February-March).

Birthday of Sri Sarada Devi. This falls on Marghashirsha Krishna Saptami, 7th day after the full moon day in the month of Marghashirsha (November-December).

Birthday of Swami Vivekananda. This is celebrated according to the Indian almanac as also according to the English calendar.

Swami Vivekananda was born on January 12, 1863. This day has been declared as National Youth Day by the Union Government. It is celebrated annually at Vivekanandar Illam in a grand manner.

Swami Vivekananda's birthday according to the Indian almanac falls on the Pausha Krishna Saptami, the 7th day after the full moon day in the month of Pausha (December-January).

Birthday of Swami Ramakrishnananda. This day falls on Ashada Krishna Trayodashi, the 13th day after the full moon day in the month of Ashada (June-July).

Kalpataru is a mythological celestial tree. It is supposed to fulfil the wishes of one who stands under it and prays. Sri Ramakrishna, during his last illness, on Jan 1,1886, like a kalpataru, fulfilled the spiritual yearnings of his disciples, granting them spiritual visions and transcendental states. January 1 is celebrated to mark the occasion.