Indian Overseas Bank — renewal of fixed deposit amount

Address:

638056

Dear sir,

I have fixed deposit of 4 lakhs of amount in indian overseas bank for a period of 1 year on 23 june 2011, due to miscommunication with iob bank - misunderstood that amount would be auto renewal after the 1 year term of fixed deposit.
But recently only aware that wouldn't be renewal after 1 year of fixed deposit.
Now iob bank branch manager said renew this amount with 1 year of fixed deposit interest rate only. That mean their not willing to pay any interest (Fixed or savings account) after the 1 year fixed deposit.
So i have loss 5 years and 8 months of fixed deposit interest.
Atleast, can i get savings interest for this 5 years and 8 months or until now??

Please advise and where to approach to get my interest rate for 5 years and 8 months!!