House Owner — house owner not returned the amount

Address:

h no 314c gpr lay out electronic city, 560100

H no 314 c road no 7 first floor, gpr lay out, huskur gate electronic city 560100 house address.

The above owner name is vijay. He is btl college principal.

We were staying in that house from more than 3+ yrs and we have given 40k deposit.in that we need receive 18k as we left the house. After several calls and msgs they are not returning the amount.

Also in that house any problem they never cared about it. With our own money we have paid for all the issues in the house. Also no were in rental agreement it was mentioned also.

Request to take some action on this

Thanks
Bharathi