You can sell the flat to someone, the allotment would be made in new buyers name by the builder, some builder charge for this and some don’t .
Adv. Shailendra Dubey
You are in rightful position to claim your entire earnest amount with applicable interest along with the damages caused by the builder upom you, the suit for the same can be filed in civil and consumer court for refund of earnest amount and part performance of contract against the wrong doer builder, but initially you need to issue a rigid legal notice upon builder stating your contentions, I am a High-court level Law-Practitioner based in Maharashtra, India, I try to empower people by helping them know about their legal rights as much as much as for free-under my capacity, if you did happen to like my answer you may procced to get the the Strong Legal Notice served on the builder at a highly economic fee possible, feel free to reach me out for further advise at email@example.com; +91 7020479749
Have a lovely day.
__Adv. Yogesh Tahiliani
(BOMBAY HIGH COURT, NAGPUR BENCH)
You can call me for advise on mobile no 9359867870
Advocate IRFAN SHAIKH