As you requires I am here giving you customer care number of Oriental Bank of Commerce branch in Mumbai.

Toll Free Helpline Number:
1800-180-1235

Toll Customer Care No. :
0120-2580001

Customer Care Number:
0124-2340940

Departmental phone number :

Inspection & Control
0124-4126113

Corporate Strategy & Planning
0124-4126376

IT
0124-4126213,
0124-4126227,
0124-4126229

Services
0124-4126341,
0124-4126328

Internet Banking
040-27894150,
040-66319345

ATM Complaint Cell
040-66318561,
040-66534040

Here is the link attachment obcindia.co.in/obcnew/upload/obc/MainMenuEnglishLevel-3_OBC_AR_2014-15.pdf
Annual report 2012-15 OBC