CSB Bank Customer Care & Helpline Numbers
Toll free
1800 266 9090
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Last verified Oct 2026 · numbers can change, confirm on the official site.
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About CSB Bank support
CSB Bank runs its customer care at 1800 266 9090, answered 24x7. The line is meant for blocked cards, failed payments, disputed charges and account queries. For anything that is not urgent, writing to customercare@csb.bank.in usually gets a written reply you can refer back to. Keep your account or card number handy before you dial — and never share an OTP with anyone who calls you first.
All CSB Bank helpline numbers
Toll free
Chargeable line
Card block and fraud reporting
ATM and lost cards
FRM Cell (digital payment fraud)
NRI toll-free, UAE
NRI toll-free, Saudi Arabia
CSB Bank contact details
AddressCSB Bank Ltd., Head Office, CSB Bhavan, P.O Box No. 502, St. Mary's College Road, Thrissur 680020, Kerala
CSB Bank helpline — questions
What is the CSB Bank customer care number?
The main CSB Bank customer care number is 1800 266 9090 (Toll free). Any other numbers for the service are listed on this page with their labels, so you pick the right one.
Is the CSB Bank helpline toll-free?
Yes — 1800 266 9090 is marked as toll-free, so the call costs you nothing from anywhere in India.
What are the CSB Bank customer care timings?
Published hours are 24x7. Outside these hours you may reach an IVR or be asked to call back.
What is the CSB Bank customer care email?
You can write to customercare@csb.bank.in. Email is the better option when you need a written record of the complaint.
My CSB Bank card is lost or I see a transaction I did not make. What now?
Call the helpline immediately and ask to block the card — speed matters more than anything else. Then raise the dispute through the official channel so it is tracked.
Other helplines
Helpline details are gathered from public sources and checked periodically. Numbers can change without notice — please confirm on CSB Bank’s official website before calling. We are not affiliated with CSB Bank.