RAK4631 Sleep mode

I’m uing RAK4631with Arduino BSP

Model: WisBlock RAK4631 Board
Board-ID: WisBlock-RAK4631-Board
Date: May 20 2023
Ver: 0.4.3
SoftDevice: S140 6.1.1

I want to know how to acheive low power consumption using sleep/deep sleep for BLE.
Tell me the procedure how to take device to sleep mode and how to wakeup from sleep.

Welcome to the forum @RaviKM

There is no special settings for BLE to save power.
Just disconnect devices that are connected and disable advertising on BLE. Then the consumption of the BLE part goes to zero.

Thank you @beegee
Tell me general procedure to achieve sleep and deep sleep mode and It should wakeup only when BLE device connected to it.