Sitaram was born in Rarh Bengal in the agriculturalist Das family, who originally came from Gaud Banga (later known as Murshidabad).
At Dhaka, he became acquainted with a soldier of fortune named Ramrup Ghosh, who accompanied him on the mission against Karim Khan.
Bakhtar Khan, a Pathan dacoit, and Amal Baig, a Mughal soldier, also joined his ranks.
Soon, the dacoity was suppressed and Sitaram became the saviour of the masses, after which he began to be compared to the village deity Nishanath.
After completing the ceremonial rites at Gaya, he travelled to the Mughal court at Delhi and made a plea for vassal rule under the empire.
In the same year, Sitaram was ceremonially sworn in as the king of Naldi, Satair and the Bhati region of lower Bengal.
In the south, Sitaram constructed a moat extending from east to west, measuring almost a mile in length and 200 feet (61 m) in width.
He encouraged craftsmen and merchants to set up businesses at Mohammadpur, and soon it became a thriving metropolis abuzz with trade and commerce.
Later, when Sachipati Majumdar, the zamindar of Nanduali revolted against Ramdev and stopped paying taxes, Sitaram supported him and made a treaty with him.
Sitaram invaded Nasibshahi when the battle for succession was taking place among the sons of Daulat Khan.
Jadunath connected the streams of Chitra and Phatki by a canal to check their further advancement and garrisoned his troops and artillery.
When Sitaram received the news, he immediately invaded the Ishafpur pargana of Chanchra and advanced with his troops to Nilganj.
In the Sundarbans, Sitaram's domain lay to the east of Shibsha river, corresponding to the modern district of Bagerhat.
In 1710, when the peasants revolted and stopped paying taxes, he advanced with his troops in vessels like sip and palwar along the Madhumati towards the south.
The southern portion extended from Bhairab in the north to Bay of Bengal in the south, and from river Pashar in the west to Barisal in the east.
When Azim-us-Shan became the subahdar of Bengal, he made his close relative Mir Abu Torap the faujdar of Bhusna.
Abu Torap, however, did not have a warm relation with Murshid Quli Khan, the Diwan of Bengal, and Sitaram knew that well.
The capital of the province was relocated from Dhaka to Patna, so it was difficult for Abu Torap to get any direct support either from the Diwan or the Subahdar.
Abu Torap sent his troops once again, but Sitaram opted for guerrilla tactics and frustrated the Mughal army in the unfriendly terrain.
Unwilling to give up, Abu Torap deputed his commander-in-chief Pir Khan, a Pathan to subdue Sitaram.
During the battle, the Mughal army was defeated, and Mir Abu Torap was killed by Mena Hati.
Bux Ali Khan was accompanied to Bhusna by Sangram Singh the commander-in-chief of the provincial army of Bengal.
Dayaram Ray, the principal aide of Raghunandan, the founder of the Natore estate, followed them with the zamindar's army under his command.
Bux Ali Khan and Sangram Singh went along the Padma and embarked near Faridpur and then marched to Bhusna.
Knowing that it would not be easy for him to capture the fort in a direct battle, he conspired and had Mena Hati killed by sabotage, sending his severed head to Murshidabad.
At the trial, Sitaram was sentenced to death by Murshid Quli Khan and his relatives were imprisoned for life.
The excavated earth was used to raise earthen embankments at some clearance around the lake in order to prevent the flood water from contaminating the tank.
Gradually, he became attracted to Vaishnavism, becoming a disciple of Krishna Vallabh Goswami of Murshidabad, who initiated him to the faith.
Sitaram erected a pancharatna temple dedicated to Hare Krishna in the village of Kanainagar to the west of the fort at Mohammadpur.
After obtaining the jagir of Naldi, Sitaram married Kamala, the daughter of a Kulin Kayastha, Saral Khan Ghosh, a resident of Das Palsha village in the district of Birbhum.