Landlord Not Returning Security Money

Hello, We had taken a house on rent from October 2017, for a period of two years lease as per the Lease and License Agreement. The agreement did not have a lock-in period, and mentioned that either parties (Tenant or Landlord) can vacate the premises after giving one month notice period in writing. As we were finding many issues with the house such as no 24X7 water supply(while taking the house, it was told to us that the water would become 24X7 within 40 days) and other issues, we decided to leave the premises and gave him a written notice on February 2018, for a period of one month until 12th March 2018. Now he is refusing to return the security deposit of 70,000 rupees. He is instead asking for one month extra rent of 30,000, one month brokerage of 30,000 and other such amounts. He has stopped responding with us in any manner, and the agents through whom we took the house are also not very helpful. We are considering going to the police to file a complaint. Please advise if there is a quicker and more correct way to address this. Thank you