IOB Customer Care Number – 24×7 Toll-Free Helpline & Support (2025)

Need help with your IOB account, ATM card, UPI, or internet banking? Whether it’s a failed transaction or a lost card, Indian Overseas Bank (IOB) customer care is available 24×7 to help you out.

Here’s a complete guide to IOB customer care numbers, email support, and ways to resolve your banking issues quickly.

IOB Toll-Free Customer Care Number

General Banking Queries

1800 890 4445 (Toll-Free, 24×7)

• Account balance & transaction issues
• ATM/debit card queries
• Mobile & net banking assistance
• Cheque book, account statement requests

Block Lost ATM/Debit Card Immediately

If your card is lost or stolen, block it immediately to prevent fraud:

1800 425 4445 (Toll-Free Card Blocking Helpline)
Available 24×7

Or block it via:

• IOB Mobile App
• Internet banking
• Visit your home branch

IOB Missed Call Banking (Quick Info)

Service	Missed Call Number
Balance Enquiry	📞 044 4222 2222
Mini Statement	📞 044 4222 2211

Give a missed call from your registered mobile number, and you’ll receive an SMS reply.

IOB Email Support

Purpose	Email Address
General Queries	[email protected]
Net Banking Issues	[email protected]
ATM/Card Complaints	[email protected]
Grievance Redressal	[email protected]

Include:

• Full Name
• Registered Mobile Number
• Last 4 digits of your Account Number
• Clear description of the issue

Online Complaint Portal

You can also submit service requests or complaints online:

• Visit: https://www.iob.in
• Navigate to “Customer Services → Grievance Redressal”
• Submit your complaint and track its status

FAQs

Key Takeaways

• Call 1800 890 4445 for 24×7 banking support
• Call 1800 425 4445 to block lost debit cards
• Use missed call banking for instant balance/mini statement
• Email support available for internet banking and card issues