Comment on Kite Connect APIs for programmatic access
1. Hmm.. The trick to making money trading is that you need your winners to make more than your losers. If they both make the same, after all costs, it will be tough to stay profitable, unless you hit like 70 to 80% ratio in winners vs losers.
2. Check this to learn all about taxation when trading: http://zerodha.com/varsity/module/markets-and-taxation/