Mahārājjī was born in West Bengal into a rich and pious brāhmaṇa family and despite being surrounded by material assets he always showed a sincere inclination towards spirituality. This brought him in his adolescent years to Vṛndāvana where he met the famous saint Śrī Rāmakṛṣṇa Dās Bābājī (Paṇḍit Bābā). Through Paṇḍit Bābā, Mahārājjī was introduced to the most erudite Vaiṣṇava of the times – Śrīla Vinoda Vihārī Gosvāmī - who became his Gurudeva.
Mahārājjī studied Vaiṣṇava philosophy and literature under him. Continuing to follow his Gurudeva’s instructions, he then went to Vārāṇasī to study other Indian philosophical systems. Having obtained 13 academic titles after 12 years of intensive studies, Mahārājjī returned to Vṛndāvana where he continued serving faithfully his Gurudeva.
Mahārājjī’s āśram, Śrī Haridās Nivās, was constructed in 1965 at the place where Kṛṣṇa subdued the serpent Kāliya in Vṛndāvanaon the banks of the Yamunā. When his Gurudeva left his body, Mahārājjī started to teach there śāstra, and focused on the three types of service: sevā to Go, sevā to the scriptures, and worship of the deities Śrī Gaurāṅga Mahāprabhu, Śrī Gadādhar Paṇḍit Gosvāmī, Śrī Rādhā and Śrī Govindadev.
To serve and protect his Go, Mahārājjī built three large gośālās, in which he has involved all his disciples and well-wishers (directly or indirectly), giving them thus a hard-to-obtain opportunity to advance in their practical application of bhakti. He is also a great advocate of organic farming, with the green fodder being cultivated on the premises without any use of chemical fertilisers.
To spread the message about Go-sevā in a formalized way, he established “Sri Haridas Shastri Go-seva Sansthan” which is run by a trust headed by himself.
Mahārājjī also became well-known for setting up Śrī Gadādhara-Gaurahari Press, through which he published Hindi and Bengali translations of many Vaiṣṇava works in Sanskrit. He has also built a huge library called Śrī Gaura Gadādhara Granthāgaram which holds many Gauḍīya Vaiṣṇava works as well as books of other topics.
Another service to Vaiṣṇava community was to author Vedānta-darśana where he explained which aphorism from Vedānta-Sūtra corresponds to which verse in Śrīmad-Bhāgavatam, fulfilling thus the wish of Śrī Caitanya.
Now, despite his ripe age, Mahārājjī receives visitants, manages the āśram and the gośālās, personally supervises Go, and proofreads, translates and publishes śāstra, providing us in this way with the best possible example of how to live simply and fully devoted to the service of Kṛṣṇa and all living beings.