Upstox faced a major issue on Budget day as fresh orders could not be made. Look, any broker you choose, issues are there. So it is better to have 2 trading accounts if you trade for a living. I case one fails, trade through the other. But no matter how many precautions you take, there will be issues and you should take this under your risk management criteria. Even Adam Grimes’ book on technical analysis says that broker issues are real and should be considered in your trading plan and so does Alexander Elder’s Trading for a Living.