"We had been receiving many complaints regarding the functioning of this home and were keeping a close watch on them for nearly six months," he said.
The Missionaries of Charity stopped organising adoptions in India in 2015 saying they disagreed with government rules that made it easier for single, divorced, and separated people to adopt children.
There have been a number of reports of babies and children being trafficked through charity-run homes and hospitals, which campaigners say is driven by a long waiting list for adoption.
The Nirmal Hriday home run by the Missionaries of Charity in Jharkhand state capital Ranchi was required to inform authorities about all babies born there.
"They were selling more babies than what they were handing over to authorities," said Baidnath Kumar, a Ranchi-based child rights activist who had filed complaints against the home.
Kujur said his organisation had directed that the credentials of every home run in the state should be checked.
"We hear that babies are being sold in other homes as well and are determined to put a stop to it," he said.