Return of taken money or Interest payment due to delay in refund

Return of taken money or Interest payment due to delay in refund of Part Money on cancellation of resale property deal I entered into an MOU for purchase of Property (flat) for Rs 1.65 Crores. and paid token amount of Rs 1.50 Lacs and two part payments on different dates summing up to Rs 40 Lacs. The balance payment was to be financed by Bank loan and some personal resources. However I was not able to arrange fund from personal resources and informed the Seller about not being able to arrange the fund and asked to cancel the deal verbally and in writing) and refund the total amount of Rs 41.50 Lacs. The Seller’s property was sold six months after this incident and they paid us back only Rs 40 Lacs and deducted the token amount of R. 1.5 lacs quoting a clause in the MOU. We signed a document confirming the receipt of this payment when cheques were collected. At that time she brought up the topic of returning the token money with another family member of the seller but they refused to consider it. The MOU mentions that token money will be forfeited only if any improper reason is given. We’d like to know: 1) If the seller has a legal right to forfeit token amount of Rs 1.5 Lacs? 2) The seller repaid after 6 months so can we ask for interest amount ? 3) If the seller refuses to return the token amount and/ or give interest payment can we file a consumer complaint for the same and time frame for file complain or legal case? 4) Can seller file counter case on us and ask for damages since we cancelled the deal and backed out from deal after 2 months (the time frame within which the sale deal was supposed to be completed) and because for 6 months their flat was vacant and they were on rent.