Air Castles - Cancellation hassle - Kohinoor Group, Rama Group

My relative wants to cancel his booking at Air Castle, Marunji near Hinjewadi. registration is not yet done.

Booking amt was Rs.1lacs and cancellation charges were 50%. Booking rate was 2450 and now he is quoting 2800 to new buyers.

Now, when we want to cancel booking, Rama builder is asking to pay 50000 in CASH and
also told that we will get back Rs.1lacs only whenever the said flat is sold to some other buyer.
But nothing of this sort is written in the booking paper, it just says cancellation penalty is 50% of booking amt.

Also these guys are pushing buyers to pay 20% of agreement value before registration even if no bank has approved the project. No Govt bank has given APF number for this project yet. search & Title report is not available from the builder even after 8 months of launching this scheme.

Avoid Kohinoor Group, Rama Group.