Bhakti Prajnan Keshava, addressed by the honorific Mahārāja, was a Gaudiya Vaishnava guru, disciple of Bhaktisiddhanta Sarasvati and the founder-acharya of the religious organisation "Sri Gaudiya Vedanta Samiti", formed in Calcutta in 1940, and its headquarters, monastery Sri Devananda Gaudiya Math in Nabadwip. Wikipedia