In delivery trades, only limit stop orders are possible (trigggered market stop orders are not possible).
After your shares have arrived in your pool (Go to Reports> DPSR> Rec Bal should be zero,
Select that row and click SELL FROM DP or TRAILING SQUARE OFF.
How to place these orders is explained in sharekhan videos.
To place stop loss in SELL FROM DP:
1.Click SELL FROM DP.
2. The order form in the second picture will open.
3. Enter the values as the picture shows.
4.The Trigger price should not be zero.
Click OK.
You are done. You can place orders during after market hours (11 pm onwards) as well.