Dear Mr.Deep,
On perusal of your querry, it seems that, the stated agent is taking undue advantage of your nature.
It is advisable to mark reply notice to the agent through your advocate mentioning therein that the agent has cheated with hands in glove with the builder to you and has also misguided and misleads you to buy the said flat which is not constructed or not in the proceess of construction. Also mention therein that, you are also resorting to take legal action against such act of cheating and failure to provide the flat as this amount of cheatinfg and deficiency in service.
Also mark legal notice to builder to provide the flat at the earliest through your advocate, on failuire, you will constrained to take appropriate legal proceedings againsrt that builder.
In case any further inforrmation, contact me on below mentioned address:
Regards
Kishor Hajare/9930647734/hajare.kishor@rediffmail.com