Due to poor infrastructure of our telecoms, exchanges, and brokers, no broker is solidly reliable for day trading. Sudden intermittent disconnections, freezing of positions, not able to exit positions, backup servers not able to kick in immediately, etc are too common when day trading. On top of that we day traders are helpless because when opening a trading account, it is mandatory for traders to sign forms saying that telecoms, exchanges, brokers are not responsible for losses due to data disruptions, loss of connection, etc. I became a swing trader as I got burnt in day trading due to the above issues.