Capital gain on ancestral property & there are 5 legal heirs

anurag gupta (student) (30 Points)

17 September 2011  

my grandfather died in 2001 n left ancestral property without
any will and there are 5 legal heir and 3 legal give attorney
without any consideration
Whether it is taxable of 3 legal heir part in my father's hand?
If cost of it in 2001 is 10 lakh and is sold for 12 lakh what amt
Is taxable?

If I have no record of cost then how it is determined?M