Anupam,
Is this an investment property ?
If so, do you see the rate of sub 3000, becoming 6000 in next 5
years ?
If you dont feel that rate will hit 6000 then don't go for it. Also
remember there will be a recurring maintenance charge of 2K every
month (after the physical allotment).
If I were you, I would wait for few years to let the construction
complete ('RE you can see') and then pay 4K / SqFt. Earn 9% interest
from a fix deposit over 5 years.
My 2 Cents.
Take care,
Arnab