The holdings tab displays a list of your Demat account's securities (stocks, ETFs, bonds, and so on). The positions page, on the other hand, displays any open intraday or derivatives trades you have taken.
The values for the positions and holdings tabs are different. The distinction is discussed further down.
The holdings tab displays a list of your Demat account's securities. From T+1 (trading day +1), shares purchased will appear under the Holdings tab.

The positions tab displays all of your open positions for the day, including intraday, derivatives, and delivery transactions.
Note:
• All shares purchased or sold using the CNC product type (for delivery) will appear in the positions tab on the day of purchase or sale. This is usual procedure. This tool allows traders to make intraday trades using equities from their holdings while also keeping track of their intraday profit and loss.