The Uttar Pradesh Legislative Assembly on Wednesday passed by voice vote a bill aimed at curbing religious conversions by fraudulent or any other undue means, including through marriage even as opposition protested. Under the bill, a marriage will be declared "null and void" if the conversion is solely for the purpose. The onus to prove that the conversion has not been done forcibly will lie on the person accused of the act and the convert, it said. BJP leaders had said the legislation intends to counter alleged attempts to convert Hindu women to Islam in the guise of marriage. Congress Legislative Party leader, Aradhana Misra, and Lalji Verma, the leader of BSP lodged their protests in the assembly.