As zerodha is a discount brokerage company so it is the fastest company to grow in the industry of stock market and trying to fullfill the expectations of their clients as much as possible they dont provide too much margin is the issue because of the low brokerage and the free equity delivery where you pay too much brokerage in other brokrage houses on the F& O trading you can give flat ₹20 on per order for buy and sell both .
I request to see other brokerage houses brokerage on F& O they take huge brokerage if you book a loss the loss amount is less than brokerage and book less profit is less than brokerage so compare it as kite software is a good rated platform on play store.