The Unique Identification Authority of India (UIDAI) on Thursday told the Supreme Court that the biometric and demographic information of people who have enrolled for Aadhaar was secure and that no one will suffer loss of benefits in its absence.

In a first-ever power point presentation in the open court, the Constitution Bench of Chief Justice Dipak Misra, and Justices A K Sikri, A M Khanwilkar, D Y Chandrachud and Ashok Bhushan was told that the data in encrypted form was “very very secure”.

UIDAI CEO Ajay Bhushan Pandey said they start collecting data from the birth of a child which is twice updated at the age of five and later at 15 years and that 1.2 billion people have already enrolled.

He also said that a number once given to an enrolled person would not be repeated even after their death.

Pointing to the “exception handling mechanism” in the UIDAI system, Pandey said that “no one will suffer the loss of benefits for the lack of Aadhaar” as the bench pointed to illiterate, the poor and tribals who may not be aware that over time their biometrics have undergone changes and must be updated.

In the post-lunch presentation that lasted for an hour and a half, he said that every five years, there may be changes in the biometrics and that they are updating information of 25 crore Aadhaar holders annually.

However, the CEO said UIDAI could not handle every problem as Justice Sikri asked him what happens if a person goes to a ration shop and even though his biometric details match, he is refused goods which are later drawn by the shop owner in an unauthorised manner.

“It has to be handled at a different level,” Pandey told the court as it asked if UIDAI has the means to know whether the benefit was denied or what is the extent of denials of services based on Aadhaar.

Stressing the entire system for storing the biometric data and demographic information is safe and free from any kind of intrusion, Pandey said that it would “require the age of the universe to crack the data stored in encrypted form”.

To questions, largely from Justice Sikri and Justice Chandrachud, Pandey said that people like leprosy patients or others who don’t have biometric details would get Aadhaar on the basis of their facial scan or their registered mobile number, which would operate on OTP (One Time Password) system.

Stressing that there was no intrusion in the privacy of Aadhaar users, he said “we are ignorant about the purpose and details of the transactions being undertaken by the people” whose Aadhaar is linked to various services.

Noting that data matching software has been bought from the world’s three best companies and stored on UIDAI’s 6,000 servers, Pandey said that these are not linked to internet to eliminate possibility of any backdoor access to the data.