Rental agreement issue

I had recently entered into a rental agreement for an agreed deposit and rent amount. Since usually an agreement is for 11 months, i signed the agreement as i was in a hurry. After i reached home and read, he had typed in the agreement that rental agreement is fixed for a period of 11 moths and locking period of 2 years separately. He hadn't specified that to me when discussing terms of agreement and i feel like i have been tricked. What can be done now?