Brahma Abadhuta Sri Guru Dayanidhi Paramahansa (18 August 1905[1] – 18 August 1992[2])
was an Indian sadguru, yogi, mystic and a Hindu spiritual leader well known in India.[3][4][5][6] He was associated with the shakti school and viewed as a perfect spiritual master of gyan, yoga and prema or bhakti.[7][8][9][10][11] His followers idealized him as their worshipped and beloved thakura (ठाकुर).
Dayanidhi was born into an Odia family in the hamlet of Jajpur in Odisha. He was a sannyasi from Shankar's school. After his ordination as a sannyasi, he came to be known as Brahma Abadhuta Sri Guru Dayanidhi Paramahansa Dev.
Dayanidhi's followers believe that he achieved siddhi (perfection) in different sadhanas (spiritual disciplines): gyan, yoga and prema.[12][13] Based on these experiences, he wrote some books: Kalpalata, Kharaswata Kalpa, Maya Jangula, Baya Dayanidhi, and SadGuru.[14][15][16] Dayanidhi reportedly experienced the state of Nirvikalpa Samadhi.[17]
After retiring from Saraswata sangha, Dayanidhi spent the last days of his life in Kolkata.