Sri Isvara Puri was a resident of Kumara-hatta, where there is now a railroad station known as Kamarhatta. Nearby there is also another station named Halisahara, which belongs to the Eastern Railway that runs from the eastern section of Calcutta.

"At the last stage of his life Sri Madhavendra Puri became an invalid and was completely unable to move, and Isvara Puri so completely engaged himself in his service that he personally cleaned up his stool and urine. Always chanting the Hare Krsna maha-mantra and reminding Sri Madhavendra Puri about the pastimes of Lord Krsna in the last stage of his life, Isvara Puri gave the best service among his disciples. Thus Madhavendra Puri, being very pleased with him, blessed him, saying, 'My dear boy, I can only pray to Krsna that He will be pleased with you.' Thus Isvara Puri, by the grace of his spiritual master, Sri Madhavendra Puri, became a great devotee in the ocean of love of Godhead." Srila Visvanatha Cakravarti states in his Gurv-astaka prayer, yasya prasadad bhagavat-prasado yasyaprasadan na gatih kuto 'pi: "By the mercy of the spiritual master one is blessed by the mercy of Krsna. Without the grace of the spiritual master one cannot make any advancement." It is by the mercy of the spiritual master that one becomes perfect, as vividly exemplified here. A Vaisnava is always protected by the Supreme Personality of Godhead, but if he appears to be an invalid, this gives a chance to his disciples to serve him. Isvara Puri pleased his spiritual master by service, and by the blessings of his spiritual master he became such a great personality that Lord Caitanya Mahaprabhu accepted him as His spiritual master.