My mother owns a flat which she wants to gift to my sister. I understand that for a gift of property to be valid it is required to be registered like a sale deed. My query is, who is liable to pay the stamp duty (donor or donee), and whether any tax is to be paid by the donee after receiving the gift of property. If my sister wants to sell the property, what is the time period after which the gifted property can be sold? Will any capital gains tax be payable if another property is purchased within two years of selling this gifted property?