3. If you are trading at Zerodha, it is Rs 20 per executed order or 0.01% whichever is lower (irrespective of lot size).
4. Since they are futures and options contract, they automatically come with leverage.
5. You could try our platform, kite.zerodha.com
6. Like I mentioned right at the start, only forex on Indian recognized exchanges are legal.
7. You could try us ;)
8. Hmm.. I guess success is by learning, trading and improving. You could start off with learning technical analysis, you can refer here. Also make sure to get a hang of futures and options before you put the first trade.