As you Asking for the Swift code of the IDBI Bank Mumbai branch the Swift Code of the branch is given below

Branch Details

IDBI Bank (MUMBAI BRANCH)
Swift Code
IBKLINBB004

Swift code breakdown:
IBKL: Bank code
IN: Country Code
BB : Location Code
004 : Branch Code
MAFATLAL CENTRE FLOOR 5 NARIMAN POINT
City: MUMBAI

For knowing the Detials of the Any other branches of the IDBI Bank you may Visit the Official site of the IDBI Bank

The page may look as follow

IDBI Bank



There At the Right of the page you may get the Menu of branch Locator click on It , After clicking you may Redirect to the page from there you may get the details of the Any other branches of the IDBI Bank

For your convince Here I am giving you the Snapshot of that page

IDBI Bank Branch Locator