Capital gain

Hello Freinds,

I have an question regarding the capital gain,

An assesee has long term capital gain amt rs 60 lakh.

He purcahed a land for 40 lakh and deposited the rest money in capital gain a/c in bank and get exempted from the capital gain tax.

Now he come an contract with an bulider for making the 3 floors on land and take one floor as an consideration of the construction.

Plz tell me that tax Imlpication on the above.

answer should be appreciated.