He also said the government should reform its policy to safeguard privacy of its citizens.
The concept of Aadhaar (the Hindi word for basis or foundation) has evolved since it was introduced in 2009.
The link requires a person to punch in his PAN number, Aadhaar number and the exact name as given in the Aadhaar card.
The government has initiated a series of measures, including allowing re-verification at subscribers' doorstep and One Time Password (OTP) based authentication of existing users, to make the entire exercise easier for telecom subscribers.
The bench also said that a seven-judge bench needed to be constituted for authoritatively deciding a batch of petitions challenging the Aadhaar scheme on grounds including that it infringes on the Right to Privacy of citizens.
E-KYCs and Aadhaar authentication are of crucial importance to the fin-tech companies as the recent RBI instructions require strict KYCs for these players to function in the market.
Long-term investors should never stop their SIPs during market corrections.
The key gain from using Aadhaar will be a drastic cut in impersonation and fictitious identities, thereby plugging a major loophole through which a lot of leakage in subsidy payment takes place.
It is widely believed that Nandan Nilekani's meeting with Prime Minister Narendra Modi saved the ambitious Aadhaar project from oblivion or a takeover by the home ministry.
It emerges that not only does the CIDR project fails the test of fairness, justness and reasonableness besides the test of not being fanciful, oppressive or arbitrary; it also fails the test of Arthashastra, Hadith and the Bible.
The last date for linking Aadhaar for mobile services will remain February 6 as per the Supreme Court order.
The AG said that due to Aadhaar, government has saved over Rs 50,000 crore on the schemes to benefit the poor as well as the pension schemes.
Jaitley said the cap on cash transactions is being reduced to curb generation of black money and the move to introduce electoral bonds is for cleansing the political funding
Linking all accounts is a difficult and costly task for brokers
The protection of individual security and privacy is critical to building safe online systems, say Mitchell Baker and Ankit Gadgil.
'The attempt to make Aadhaar mandatory has now emerged as an act of bullying by government agencies, turning citizens into subjects by making fundamental rights conditional on biometric identification,' says Gopal Krishna.
Aadhaar is a 12 digit individual identification number issued by the Unique Identification Authority of India on behalf of the government of India.
New schemes allows consumers without Aadhaar to receive cash directly in their bank accounts
In a last ditch attempt before the issue moves to a larger Constitutional bench, the government on Wednesday made a fresh pitch before Supreme Court for allowing voluntary use of Aadhaar cards for welfare schemes, saying it was prepared to give an affidavit by the "highest functionary" by Thursday morning that nobody will be deprived of benefits for lack of it.
Sharad Sharma, co-founder and governing council member at iSPIRT, on Tuesday admitted using anonymous accounts to troll on social media those who raised questions on Aadhaar and its applications by the government.
AAdhar cannot be successful unless there is proper coordination at the helm.
The Centre also referred to various international economic reports and surveys to emphasise on the need for Aadhaar.
A bench headed by Chief Justice Dipak Misra said there was no urgency to hear the matter after Attorney General K K Venugopal told the bench that the Centre will extend the September 30 deadline.
A key argument against the Aadhaar scheme was that it was violative of the nine-judge bench verdict that had held that Right to Privacy is a fundamental right under the Constitution.
Biometric authentication is based on the unscientific and questionable assumption that there are parts of human body that does not age, wither and decay with the passage of time.
Having made Aadhaar mandatory for receiving subsidised cooking gas (LPG) in 19 districts, Oil Minister M Veerappa Moily on Wednesday said the unique identification card will no longer be a must for giving subsidises unless cleared by the Supreme Court.
The ministry, under Ravi Shankar Prasad, will soon prepare a Cabinet note for bringing Aadhaar under its administrative jurisdiction.
'The most valuable personal sensitive information of present and future citizens has been made available to foreign data firms and governments and non-State actors for all time to come,' says Gopal Krishna.
Venkaiah Naidu said Aadhaar will not be made mandatory till the entire population gets such cards or UID numbers.
The apex court made it clear that banks and telecom service providers will have to indicate the last date of linking bank accounts and mobile numbers with Aadhaar in their communications with customers.
The 16-digit randomly generated number by the Aadhaar system was supposed to be introduced by the UIDAI on March 1 and mandatorily deployed by companies using Aadhaar by June 1.
The government hurried through the scheme, which required a complete re-engineering of welfare delivery, severely challenging its implementation.
Those people without the Aadhaar number have found a loophole in the system
Private firms' offer to print Aadhaar details on plastic card a breach of law
He also made an appeal not to 'overblow' the issue of data breach.
The state government has ordered an inquiry into the matter.
Supreme Court allows more instruments to use the biometric card.
Aadhaar is a creation of the previous Congress-led government.
The amendment makes it clear that if the linking of Aadhaar is not done by the date to be notified by the govt, the account of the individual would be blocked.
It also said that PAN card without Aadhaar number would not be treated invalid till the Constitution bench decides the larger issue of Right to Privacy.