My father had received R Com shares after demerger of Reliance in 06/07. He gifted these shares to me. Currently R. Com is worth nothing. I want to sell this and book LTCL as the price is not likely to go up and may even get delisted. But the problem is i am unable to find the what the cost price was when it got demerged. I am assuming the demerged price can be taken as cost price for LTCL.