Zerodha is one of the leading discount broker in indian market. It is also one of the top broker among all brokers available in the market.
Customer service of zerodha is excellent however, when it comes to technical errors, it is one of the worst platform. They failed to resolve technical difficulties and some people also think that they create such difficulties so that retail investors cant make money.
I have been investing via this platform since 4 years and my experience is okay.
You can try this platform.