On your concern I will get the local head office address of State Bank Of India located in Kolkata.

Here is the address
State Bank Of India
'Samriddhi Bhavan,
1, Strand Road ,
Kolkata-700 001.

Phone:-
1800-345-3455

Here I’m telling you process to search for branches easily

Visit the official site of State Bank Of India
Site page will open at middle bottom page
Click on the section of branch locator
A new page will open at middle page
Click the option of locate a new page will open
Which looks like this there you can get the information easily

State Bank Of India branch locator



Address:-
State Bank Of India
3rd Floor, G Block, Synergy Buidling, Bandra Kurla Complex-Bandra East, Mumbai - 400051, Behind National Stock Exchange

Phone:-
+(91)-80-26599990
18004253800,1800112211