@Sagar bro, registered with new ID. But still it's not working. Chat cc told that, I will contacted by other cc executive within 3 days to solve the issue.
@sumitroy bro, I did the software update for my phone in last year March. And didn't installed any app other than My Idea. Today I uninstalled & reinstalled TS mobile app again but problem still persists.
I'll try reinstall again in the method mentioned by you .