A buyer entered into a sale agreement in 2022 to purchase a plot in Hyderabad. The plot's original owner had a registered development agreement from 2018 with a builder who has since done nothing. The buyer is concerned about the validity of their 2022 sale agreement and whether they can proceed with registration. The advice given is that the validity hinges on the terms of the original development agreement, specifically if the builder failed to meet any time limits. If the original agreement period has lapsed, a cancellation deed between the cousin and the builder would be necessary before proceeding with the new sale registration.