What email id did you used . If it was TCS email id you might have issues getting it back unless you had associated another personal email id with your credentials .
If you can access your accredible account you should have the options of a primary email id and secondary email id . Did you had any email id that was not associated with tcs id listed there. Here is what i have .

Thank You
Pradeep Singh - https://www.linkedin.com/in/dbxdev