Long Option Delivery Margin for Physically Settled stocks

Is there any additional margin requirement to hold the long option positions in securities eligible for physical settlement till expiry?

Yes, as per regulatory requirement exchanges require brokers to charge delivery margins on In-the-money (ITM) Long Options positions in securities marked for physical settlement. This margin is required to be collected from Expiry-N days and this will be at the discretion of I-Sec basis the internal Risk management policy.