Indian users are not receiving OTP’s, other transactional, promotional and notification messages are also affected. OTP and SMS Notifications not working telemarketing companies are heavily affected. Bulk SMS service provider are facing high rate of message delivery failure. All company or service providers using SMS based OTP or transactional SMS for notifying users are facing this problem. Users are not able to order foods from food delivery apps many bank users are unable to complete their online payment because OTP is not delivered to their registered mobile even some govt related services are also heavily affected by this. There is some reports that Indian government COVID vaccination registration app COVAXIN is also affected. Users are complaining on Twitter and Facebook that they are not receiving OPT’s and notifications. And we have come to know these all issues are because of TRAI has made DLT registration mandatory for telemarketing and every service provider compa...