Download Aarogya Setu AppDownload Aarogya Setu AppDownload Now!Vel Tech Rangarajan Dr.Sagunthala R & D Institute of Science and Technology (Deemed to be University)2020-04-12T20:18:08+00:00Share This Story, Choose Your Platform!FacebookTwitterLinkedinGoogle+About the Author: Vel Tech Rangarajan Dr.Sagunthala R & D Institute of Science and Technology (Deemed to be University)Best Engineering Institution in Chennai, India