Mobile subscribers who are yet to link their numbers with Aadhaar can do so from the comfort of their home from January 1 using a voice-guided system that would complete the process through a one-time password (OTP). This facility, however, will come nearly a month and a half behind the original target date to roll out a convenient OTP system for customers. The delay follows confusion and tussle between Unique Identification Authority of India+ (UIDAI) and telecos.

With the government asking mobile subscribers to link their numbers with Aadhaar+ following security concerns raised by the Supreme Court, a large number of subscribers began the process. However, soon there were complaints that it was proving difficult to complete the process by visiting the customer centres of mobile companies. Over 50 crore subscribers have still to get their numbers confirmed.