How were grenades thrown at Diu?

Did Portuguese troops use staff slings to throw grenades during the battle?

Some grenades were thrown by hand and some with staff slings; a more dramatic account of men throwing them while swinging on ropes is less reliable.

The Portuguese used more than one method to deliver clay grenades. Some were thrown directly, while others were launched with staff slings. Another account describes men swinging across on ropes and releasing grenades into enemy positions, but that version is treated as less reliable. The distinction shows why a dramatic detail needs stronger source support.