How to remove GTT in Zerodha?

You can remove GTT order in Zerodha from the GTT tab under the Orderbook window. To remove the GTT, click on the Delete button for the desired order to be removed.

The orders get displayed under the GTT tab until the trigger condition gets hit. Once the trigger gets hit, the orders move to the Pending order window. You can cancel an order from the Pending Order window.