What is the benefit of BTST?

BTST (Buy Today, Sell Tomorrow) involves purchasing shares on one trading day and selling them the following trading day before the shares are actually credited to the trader's Demat account. The Indian capital markets follow a T+1 settlement cycle. For instance, if a stock is purchased on Monday, it is delivered to the demat account on Tuesday. However, the stock can be sold even before it is received in the demat account