Who is best discount broker in India?

I have had excellent experience with below, considering their app, web interface, Customer Care[Especially for the new ones] and downtime

1) Zerodha
2) upstox

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Zerodha – Open Paperless Account

Open online account with Zerodha. Free delivery trading and Max Rs 20 for Intraday, F&O, Currency and Commodity Trading. Intraday High leverage with MIS, CO and BO.

Are you a day trader?