"Conversion is a matter of choice and is guaranteed by the Constitution. Why do we need a separate bill for ensuring 'Freedom of religion' or banning conversions? Christians are not in favour of any such law," Archbishop Anil Couto told reporters here.
"The fact that people are being offered Below Poverty Line (BPL) cards and other privileges within the domain of government adds to our fear that these elements enjoy patronage from certain quarters," he said.
Five states including Arunachal Pradesh, Gujarat, Madhya Pradesh, Himachal Pradesh and Odisha - currently have anti-conversion laws.
John Dayal, former National President, All India Catholic Union alleged that the proposal for a law against conversions was targeted at minorities.
He also said that the Christians are disappointed on the government's move to 'enforce' Good Governance Day celebrations on December 25, when Christmas is celebrated.