1. You can lodge complaint with police but since it is a civil dispute the police may not intervene.
2. However there is nothing to worry much as you can seek speedy and efficacious remedy from the consumer forum.
3.If you file case in the consumer forum you will not get refund or alternatively delivery of possession but damaged and compensation out of this delay and harassment.
4. So file the case beofre the consumer forum to redress your grievances fast.