Pratiloma (hypogamy) marriage among Hindus was invalid while anuloma (hypergamy) marriage was permitted till late 1940s. However there were judicial decisions against the validity of such marriage.
The 1949 Act validated all marriage between parties belonging to different religions, castes sub-castes or sects. But it did not validate marriage between a Hindu and a Muslim. This Act also stands repealed after the 1955 Act.