Amid a debate on privacy concerns, which has also reached the Supreme Court, activists and people in general fear that the 12-digit number posed a threat to citizen's privacy.

Sharma had earlier, in an interview, said that there had not been a single instance of data being breached, and had there been one, the entire Aadhaar database would have been vulnerable.

Alderson, who is known to have revealed security loopholes in the Aadhaar data system, also posted screenshots of Sharma's leaked details with key areas blackened and hidden.

One of the screenshots even carried his PAN details. But that too was hidden.

However, Sharma is not convinced that all these details have been revealed by hacking the Aadhaar database. In fact, he insisted that Aadhaar does not compromise the privacy of any individual.