From January 1 onwards you can link your Aadhaar with mobile via OTP. From the comfort of your home, you could use the voice guided system that could complete the process online. This facility ought to have been available for customers from December itself, but thanks to a tussle between the UIDAI and the telecom companies, it has been delayed by a month. Currently, there are around 50 crore subscribers who are yet to link their mobile with Aadhaar. Watch this video to know how to link your Aadhaar.