Atul Champati was married to Kshiroda, the daughter of Digambari, who was the elder cousin sister of Lord Prabhu Jagadbandhu. Digambari was the daughter of Bhairab Chakraborty, the elder brother of Dinanath Chakraborty - the father of Jagadbandhu. Thus Jagadbandhu was the father-in-law to Atul Champati in terms of maternal relationship, although Jagadbandhu was much junior to him.
Atul Champati earned his B.A. degree with honors in English, Sanskrit and Mathematics, and was the Headmaster of a renowned High School in Arrah, West Bengal. Prabhu ordered him to renounce family life and fulfil His Order and Mission.
Thus the teacher of Mathematics, a vastly learned man, Atul Champati, turned over a new leaf in his life as a devout follower of Prabhu Jagadbandhu. He dedicated his life wholeheartedly in singing kirtans (devotional songs) on the streets of Calcutta unceasingly for one year and lived the life of a beggar singing
"Krishna Govinda Gopala Shyamby the directives from Lord Prabhu Jagadbandhu and was considered as being very blessed by Him!
Radha Madhava Radhika Nam!"
Sripad Mahendraji was born and raised in childhood in the village of Phulbadina in the subdivision of Narail in Jessore, now in Bangladesh. His original name was Mahendra Debsarkar. He was sent to Diamond Harbour, West Bengal, to go to school.
From about grade five in school, he seemed to be a devotee of Lord Krishna. While in grade eight, Mahendra quit school and went away to Vrindaban all alone and without informing anyone. In Vrindaban, he roamed around in the forests and temples seeking to find Lord Krishna like a destitute boy.
Under the Banyon tree named "Banshi", he happened to meet Sacchidananda Swami sannyasin and by his grace devoted himself to the benevolent services of his Sevasram "Gouranga Daridralay". But the tinkling rythm of the name of Lord Krishna kept on haunting him unceasingly. One night he dreamt of Lord Jagadbandhu in His Celestial Body and Image.
After a few days, he met Nabadwip Dasji, a very close companion of Prabhu Jagadbandhu, by another fortunate occasion at Brahmakunda. Nabadwip Dasji mentioned the name of Prabhu Jagadbandhu and Mahendra felt ecstasized in his mind and grew transcendental at the name of Prabhu Jagadbandhu. Nabadwip Dasji indicated that Prabhu Jagadbandhu was maintaining absolute silence for the past nine years in His 'Bandhu Kutir' at Faridpur Sri-Angan Temple, where he kept Himself confined without making Himself visible to the public or devotees.
Then Mahendra was blessed to meet Atul Champati on the street of Vrindaban. As Mahendra came to know how Atul was blessed by Lord Prabhu Jagadbandhu to do what he did on the streets of Calcutta for a year, Mahendra was evermore incited to leave for Faridpur Sri-Angan. Atul Champati initiated Mahendra in asceticism and urged him to go to Faridpur Sri-Angan where Lord Prabhu Jagadbandhu was eagerly waiting for his arrival.
Mahendra reached Sri-Angan in 1318 in the month of 'Ashar' in Bengali Calendar (in English calendar 1911, July/August). Mahendra felt transcended once again by the touch of the holy land of Faridpur Sri-Angan, where an absolute silence was prevailing in concordance with the silence maintained by Prabhu Jagadbandhu. He wanted to serve Lord Jagadbandhu with all his physical as well as mental and religious existence, but for the last three days the Lord was not accepting the food cooked by Krishnadasji. Lord's niece and wife of Atul Champati, Kshiroda Devi waited and waited with the food platter for Him on the closed doorway of 'Bandhu Kutir' without avail.
Then on the fourth day when Mahendra cooked with all his devotion to the Lord and Kshiroda served in front of the closed doorway, Prabhu opened the door transiently and accepted the food.
Mahendraji served Prabhu Jagadbandhu at Faridpur Sri-Angan and took part in various 'Lila's exhibited by the Lord on diffent ocassions and at different periods of time.
At Sri-Angan, Mahendra met Bankim, a boy of 13/14 years of age, who came all the way by walking a distance of 80 miles to Sri-Angan to see Prabhu Jagadbandhu from the village of Khalishakota in Barisal, now in Bangladesh. Later Mahendraji offered him the name of "Mahanambrata Brahmachari" as he accepted him as his disciple to worship Lord Jagadbandhu.
When the Lord ended His 'Lila' by attaining a deliberate and controlled state of leaving His mortal body from the world at Faridpur Sri-Angan, on 12 Ashwin, 1328, Mahendraji annouced solemnly to the assembled devotees - "Prabhu did not leave this world. He still is alive. The chanting and singing of 'Harinam' and Him are inseparable. Harinam is Prabhu Jagadbandhu. Harinam is Mahanam - chanting and singing the name of Hari is the greatest of all chantings in the world."
Mahendraji is the Founding Acharya of Mahanam Sampraday, the head of which was Dr. Mahanambrata Brahmachari till he left this mortal world and went to heaven on October 18, 1999. .
Kunja Dasji was the senior-most among the living members of the original Mahanam Sampraday. He was next to Mahendraji and lived at Sri Angan for several years. He then established an Ashram of Prabhu at Dahapara, Murshidabad, West Bengal, the birthplace of Prabhu Jagadbandhu. Worship of Prabhu's image and Annual Birth Anniversary are being performed there with all earnestness. Kunja Dasji was an ideal devotee, absorbed in 'Bhajan'. His voice was very sweet and he could sing Kirtan excellently well even in his advanced age. He had a wide range of study of all the Vaisnabite Sastras, including those of Prabhu. He passed away on 5th Sraban, 1388 B.E. (1981 A.D.).