unable to buy for my stratergy

I want to execute a butterfly strategy in zerodha for next week expiry for index options, I want to buy 700 points far from the ATM strike price, I can sell first but it requires a huge margin and zerodha allows buy within 300 points far.

How can I set my strategy can u pls guide me for the same.

Due to Open Interest limits, you won’t be able to buy options outside the allowed range unless you have short option position.

You can migrate your account to Orbis, to trade without any strike price restrictions. You can create a ticket here and our team will guide you through the process.