The apex court, earlier on Friday, agreed to grant an urgent hearing over the issue after senior lawyer Shyam Divan mentioned the matter before it.
The apex court agreed to Divan's plea and said the matter is likely to be heard on May 17th.
Lawyers appearing for various petitioners, however, argued that the system is not full proof and can be duplicated.
Rohatgi defended the Centre's decision, citing that it was done to curb the use of fake PAN cards across the country.
Rohatgi said the Centre was entitled to have identification and people couldn't claim immunity from it.
"There are safeguards for privacy under the Aadhar Act. Under the act the authority shall ensure security, confidentiality of data," Rohatgi said.
It referred to its order in 2015 when the apex court had made the Aadhaar optional.
Referring to this, the court said, "How can you make Aadhaar card mandatory when we have passed an order to make it optional?"
The Attorney General argued that mandatory Aadhaar was the only way to check black money.
The court earlier on March 27 specified that the Aadhaar card should not be made mandatory for availing governmental schemes.
In a violation of the apex court's order, the Centre introduced last-minute amendments to the Finance Bill 2017, making Aadhaar mandatory for filing taxes.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)