The facts are not sufficient enough for me to answer comprehensively. The Second parallel set of documents executed in favour of some other person, was it executed prior to the execution of sale deed in your favour ? If it was so executed and registered before that, then in that case those documents would prevail over yours. Since the subsequentupurchuaser had a contract only with you, you had to ensure that you pass a good title, if you dont you can be held liable but not criminally. It would be in your best interests to ascertain teh facts correctly - and then initiate action against promoter to save yourself and establish your bona fides.
Adv. Bharat Chugh