There are several ways to check Account Balance of Karur Vysya Bank.

Internet Banking
Mobile Banking
KVB e-Book (Version 4.0)

Here I am providing information about Internet Banking Service:

Internet Banking
The details/menus available are:
My Accounts
Transfer funds
Term deposits
Loans
Customer Services

Customer Service
You can view the status of a number of other services:
Cheque status – To know if a particular cheque is paid or not
Stop cheque payment - To stop the payment of the cheque
Forex Rate Inquiry
Bulletins
Mail Box
Cheque Book status Inquiry
Registering alerts – To register for alerts and messages
Change Password – To change your password word to log-in to internet banking
Session summary report - To know the summary of your log-in activities.

Charges for Internet Banking
Free to Corporate Customers including the RSA security Token; Free for Retail Customers – For security Token Rs. 500/- if opted.

Mobile Banking
11 Steps for Registration to Mobile Banking:
Step 1: Click the Sign Up Button
Step 2: Click mPAY Registration
Step 3: Click mPAY Registration → Debit Card
Step 4: Enter Customer ID
Step 5: Enter Card No.
Step 6: Enter ATM PIN
Step 7: Enter Card Expiry Date (MMYY)
Step 8: Enter Mobile No. registered with Bank
Step 9: OTP & the mPIN will be sent to the registered Mobile Number
Step 10: Enter the OTP received in the application
Step 11: Set the Application Password

Various Banking services are available:
Financial Services
Funds transfer within Bank.
IMPS (Interbank Mobile Payment Service) – Enables to transfer money from one bank to another bank instantly.
TNEB Payment.
Bills Payment.
Institutional Fee Payment.
Air Ticket Booking.
Mobile Recharge.
Movie ticket booking.
Temple donation.

Non-Financial Services
Balance Enquiry
Mini Statement
Cheque Book Request
Stop Payment of Cheque
Debit Card hot list
Branch Locator
ATM Locator
Product Features
Refer a Friend
Feedback

KVB e-Book (Version 4.0)
Features:
Accounts:
Account Details
Account Summary
Account Statement
Inward Cheques
Cash Remittance Limit
Uncleared Funds
Cheque Status Enquiry
Domestic Transfer Enquiry
Debit Card View & Hotlist

Deposits:
Term Deposit Summary
Term Deposit Details
Term Deposit Interest Rate
Deposit Statement
Form 16 A

Loans:
Loan Summary
Loan Details
Loan Statement
Gold Loan Rates
HSL Interest Certificate
Loan Schedule

Requests:
Apply Online
E-Statement Registration
E-Statement Deregistration
Alerts Registration
Set Favorite Account
Cheque Book Request

Utilities:

Calculator -
RD Calculator
Deposit Calculator
Loan EMI Calculator
Housing Loan Eligibility Calculator
Reverse EMI Calculator
Cash Certificate Calculator

Locker Details -
DEMAT Details
Holding Details
Statement of Transactions
Billing Statement
DEMAT Account Details

Locator –
Locate by City Name
Locate Nearest ATM / Branch / CDM
Locate by a place’s Pincode

Info corner:
Branch Details
Notifications
Forex Rates
Contact us
Holiday Calendar
Sunday Working Branches

How to download KVB e-Book:
Register your mobile number with the Bank
Download the application from Google Play Store or iOS app store or Windows store or Blackberry Market (BBW)
Accept the Terms and Conditions
'KVB e-Book' icon will be created in the Mobile on successful installation
Customer ID and Mobile Number to be entered
mpin will be generated and sent to the registered mobile number for the first login

You can do this also:
Give a missed call to know the transactions and balance in your account.

Register your mobile number with the Bank.
For Balance enquiry, give missed call to 09266292666 from your registered mobile number. You will receive an SMS showing the current balance in your account.

For Account Statement enquiry, give a missed call to 09266292665 from your registered mobile number. You will receive an SMS showing the last 3 transactions in your account.