Cheque bounce.

Dear all, Thank you for providing this opportunity to ask my questions here. I Have booked a 2 bed room apartment flat in Bangalore on 29th Sep 2014 with dreamz India infra ltd,and I paid 500000 (Five lakh rupees )initial deposit.It is a free launch property.The builder agreed to complete construction with in 20 months but he has not started the work even at the end of 20th month.I realised that he is not a genuine builder and I cancelled the booking on 1st June 2016.The company has given the post dated cheque of amount Rs.500000 (Five Lakh rupees ).The cheque dated 28th Nov 2016 against my cancellation.But my cheque got returned.Reason is account closed.Now office is also closed.I don't know his home address.How can I serve Lawyer notice ?.He is absconding and he is cheated more than thousand people with the total amount of more than 100 crore.I am requesting you to guide me how to send a Lawyer notice with in 28th of Dec 2016.I heard that if we are not able to send notice with in a month,it is not valid. Thanking you. Nagaraja