How to set an Intelligent Trailing Stop Loss?

Have seen a video from Kartik Sir about setting stop loss. But someone please explain what would be an intelligent Trailing SL to set in an Bracket Order.

A Bracket Order on Zerodha automatically sets a trailing stop loss based on the value input by you in the Trailing Stop Loss field.

You can read more here:

What is a bracket order

If you’re asking what an appropriate stop loss for an order would be, then that depends on the security you’re trading as different securities have different trading ranges.