Is it true that u will be eligible for promotion if u get continuous three "A" bands

No. Minimum 3 years in tcs without C band and good relation with your manager. If you have some certification it's a plus point but not mandatory

If it's not continuous 3 A bands then?

It's history now ... Ab aisa rarely hota hain

Yaha pe sab manager ke chele chahiye you will get promotion without A band as well 😜

Yes true, Still required a good repo with management

+1