Tata Business support services Did not received salary and now it's more then one year worst company TBSS

I was left Tbss one year before. But till now did not received my 1 and half month salary regarding this I had complain to manager and then operation team but no result just fed up now all time they said wait for 2 month 1 month and now it’s more then 1 yr but no result. I don’t know why the company investing that much money on EP team if they can’t do anything for employees. I had done lots of mail on there help desk but did not got any reply from there now it’s to much I am completly harressed by this people pls take any action regarding this other wise I will file complain against company for holding my salary without any reason.
Kindly help

Regards
Abhishek P. Mehta
Employee ID 167003
9165606368
8700567286