Didn't zerodha have some progressive approach to option selling. I recall offline that is the only strategy they believe that works.
Besides they know how to decrease margin whether it is cover orders or bracket orders, same day settlement for futures etc and pretty much are pioneering in this aspect. If there is anyone it would be zerodha. The present discount brokers are more open minded to consider this especially since they need to distinguish themselves but for this the risk mgmt team needs to be proactive and experienced. I think the bigger discount brokers zerodha, myvaluetrades, composite edge may be a good bet (big based on balance sheet)