Under Section 23 of the Sale of Goods Act, 1930 for passing of property in goods:

Under section 23(1) of the Sale of Goods Act, property in unascertained or future goods sold by description passes when goods of that description and "in a deliverable state" are unconditionally appropriated to the contract with the assent of the other party. A seller having to do something to put goods into a deliverable state, or to ascertain the price, concerns specific goods under sections 21 and 22, and the buyer doing something to ascertain the price is not a condition under section 23.