There are various SSB COACHING institute in banglore , but the best of th are

1.Caveliar service selection academy

Not only the academy offers a trainning atmosphere for the interview but it has a well organised and structured for GTO as well , the faculty are ex assessors of various service selection boards and give ample amount of time to each and every student .

2.Olive green institute

Though a little expensive , the infrastructure and faculty make leave no stone unturned to make a candidate fit for selection .

All the best :)