Indexed cost of property

chaitanya (ceo) (176 Points)

12 December 2015  

hi namaste,

this is regarding indexed cpost of property sold. 

 booked a flat with a Builder in 2006 and entered the construction agreement . Payments to builders were made in 10 instalments. Got Possession in 2008. now the property is sold in Dec. 2015. 

I know that it isa a long term gain. 

but I do not know how to calculate Index cost  .As I have Paid 10 instaments, shall i calculate indexed cost for each instalment or ......otherwise 

please guide