At the first hearing on petitions challenging the citizenship law, the Supreme Court on Wednesday declined to stay the contentious law but told the government to respond to petitions that have attacked the amended Citizenship Act on grounds that it violates the Constitution.
The court will hear the case next on January 22.
At the hearing, the petitioners represented by senior lawyer Kapil Sibal argued that the law should not be implemented as the rules have not been notified.
Nearly 60 petitions have been charged up at the Supreme Court over the last week after Parliament passed made changes to the law to provide for a special arrangement to grant citizenship to religious minorities from three Islamic countries: Pakistan, Bangladesh and Afghanistan.
The controversial law have triggered street protests, first in the northeast that later spread to other parts of the country.
In national capital Delhi, one such protest around Jamia Millia Islamia university turned violent on Sunday and led to police action.
The petitions have broadly challenged the law on the ground that the law discriminates against people on grounds of religion and privileges religious persecution of only specific religions.