India, Aug. 14 -- The Supreme Court on Thursday agreed to hear a plea filed by a Rajya Sabha lawmaker challenging the alleged deployment of facial recognition technology and other biometric surveillance measures by Delhi Police during the recent student protest at Jantar Mantar here.

A bench of Chief Justice Surya Kant and Justices Joymalya Bagchi and V Mohana directed the matter be tagged with earlier petitions on the issue.

Senior advocate Menaka Guruswamy, appearing for Rajya Sabha MP AA Rahim, said there are two issues which are a matter of concern-facial recognition of protestors done by Delhi police and data stored by private companies.

"One maps your face and one is a vehicle. So spectacles are used and a vehicle is also used. A...