As you asking for the branch bellary let me tell you that as per my knowledge the south Indian bank does not have any branch in bellary . here I am giving you the procedure to get the details of the branches of south Indian bank
go to the official site of the South Indian bank
the page may look as follow:
South Indian bank




there you may find the link of the branch locator at the right corner of the page Click on it .

it May redirected you to the page from there you may get the details of the branches of the South Indian bank by opting the City or state for your convince here I am giving you the snapshot of that page

South Indian bank branch locator