How to deal with a landlord who wants us to stay in his appartment

Hello everyone, We are two european students and we moved to bangalore a month ago. We had spoken to a guy beforehand who rented appartments through a facebook group, and agreed to rent his appartment from the 19th of Jan to the 3rd of March. Nonetheless, once we arrived in the appartment, we noticed it was way too far from our school (which he lied to us about, telling that the ride was to be 20 minutes and it actually more is like 45 mins when it goes well, often over an hour in rush hours). We had agreed to rent his appartment for two months, but we haven't signed any document, or completed any contract. Every agreement has been written informally, through FB messenger and whatsapp. We decided to move out of the appartment today (30/01) because of this and when we informed him of our decision, he threatened to sue us, if we don't at least pay half of the next month (17500 rupees). We have already paid the rent for the 19/01-31/01 period. My question is : does he have any leverage? Are we in actual danger? Should we pay him what he asks for and let it be? Thank you very much in advance.