yes, there is a court case pending. where District court Kukatpally has given an Injunction of stop the construction activity and also regisration/mortgaging of the property. but the construction companies now a days just try to sell the flats to customers by telling all stories and sell. end of the day, all the people who buy the flats end up like Delhi Amrapali, where they need to go to court to court.
please check Order number 428 in Kukatpally, rangareddy court order for more information