Disappearance festival of
founder of the worldwide Sri Chaitanya Maths and Sri Gaudiya Maths,
Bhagavan Sri Srila Bhaktisiddhanta Saraswati Goswami Prabhupad.
Selected reference to this day, on the Math's websites.
New sloka composed yesterday (30th December 2004) by Srila Gurudev. As the feast for Srila Bhakti Siddhanta Saraswati Thakur Prabhupads tirobhava arrived, His Divine Grace Srila Govinda Maharaj spontaneously composed this sloka in his honour: