Margin Requirement on F&O

I recently got a notification from Kite that I need to deposit some extra margin as Tommorow is the expiry day for Nifty. As per new regulations I need to maintain more margin on expiry day. I have shorted call spread. Now what happen if I don't deposit this margin? Will it automatically squared off? Actually I want to sell the puts at the time of opening of market (like in first 30 mins). So does it anyway harm me with penalty? Or just get squared off without any panelty?