As you Asking for the Contact details of the Regional Office Mumbai of the Jammu And Kashmir Bank the contact details are given below

Regional Office Mumbai
Address: Kolivery Village, MMRDA Area, Bandra Kurla Complex, Bandra East, Mumbai, Maharashtra 400051
Phone: 1800 180 7026

For knowing the details of the any other branches/Regional of the Jammu And Kashmir Bank you may visit the Official site of the Bank

The page may look as follow

Jammu And Kashmir 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 Jammu And Kashmir Bank

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

Jammu And Kashmir Bank Branch Locator