UIDAI believes that this step will guard against any unauthorised use.
UIDAI CEO Ajay Bhushan Pandey said: "In order, for people, to know which mobile number is linked to Aadhaar, all telecom operators have been asked to provide this service to their customers by March 15."
UIDAI took this step as some retailers, operators and agents of telecom companies allegedly misusing Aadhaar authentication facility to issue new SIMs or for re-verification of numbers other than that of the Aadhaar holder.
All telcos will have to make the new facility available to subscribers by March 15. This may be an SMS based facility.