In December, the court had issued a notice to the Centre on various pleas including those filed by the Indian Union Muslim League (IUML) and Congress leader Jairam Ramesh.
A three-judge bench headed by Chief Justice Sharad Arvind Bobde said it may refer the petitions to a larger constitution bench.
Trinamool Congress MP Mahua Moitra, AIMIM leader Asaduddin Owaisi, RJD leader Manoj Jha, Muslim body Jamiat Ulama-i-Hind, All Assam Students Union (AASU), Peace Party, CPI, NGOs "Rihai Manch" and Citizens Against Hate are among the several parties that have filed petitions challenging the constitutional validity of the Citizenship Amendment Act.
"Because it is a well-drafted legislation, with a specific goal, for a specific group of people, there is really no problem on it passing the muster", said Aishwarya Bhati, a senior advocate at the Supreme Court who supports the government's move.
Meanwhile, the court has given Centre four weeks to respond to pleas challenging validity of CAA. The matter will be listed after five weeks for interim orders. Singh pointed out that people from Bangladesh were allowed to come in till 1971 because they faced persecution, but when the cut off date was revised, it violated the Assam Accord.
Noted lawyer Kapil Sibal arguing on behalf of petitioners had asked the court to put on hold the National Public Registry (NPR) process for at least three months, which is scheduled to start from April. The Supreme Court had also restrained all High Courts from hearing pleas on CAA, until its response.
The Act has been challenged by the Kerala government in the Supreme Court. However, it showed a strong inclination to do that. "We believe that the matter will be heard by a constitutional bench which will finally take a call".
However, the protests in Assam and Tripura have differed from those in other parts of the country.
The campus protests have gained massive support across the nation after Delhi Police tear-gassed students of Jamia Millia Islamia University on Sunday night without any permission from the campus authorities.
He alleged that the government had propagated several lies on the law. However, the law the parliament approved in December sparked vehement opposition, with critics saying it is discriminatory because it excludes Muslims.