i want to trade in options. since BO and CO orders are disables in option trading how i can put my stop loss order. Further i buy/sell options in regular mode intend to hold but want to put stop loss for intraday what is the process.if possible please revert with proper screen short or step wise step clarification.

BO or CO orders are cancelled/disabled. Because of the market sell orders, which caused some freak trades with illiquid options in the past.

You mentioned buy/sell options in regular mode to hold!
By that do you mean to convert from intraday to positional or carry forward your positions?

In fyers you have to change your order type to margin to carry forward your position, it's like CNC in cash segment.

And stop loss market orders are disabled. So you need to use stop loss limit orders to set a stop loss.