Sale of Goods
Definition
A contract whereby the seller transfers or agrees to transfer the property in goods to the buyer for a price (Section 4, Sale of Goods Act, 1930). In a 'Sale', property in goods passes immediately; in an 'Agreement to Sell', it passes in future.
Example
"A walks into a shop and pays ₹500 for a book. The ownership (property) transfers to A immediately — this is a Sale of Goods."