Hi @nithin,
Is there anything happening on reducing the Exchange transaction charges for F & O? I am aware of a request made by ANMI way back in 2014 ish I guess to reduce the number.
NSE: 0.053% (on premium) is literally sucking blood when doing scalping with high premium options. 
Thanks!
The cost of trading is ridiculously high in india.
It can be anywhere from 10% to 50% of your invested amount ,depending on trading strategy.
so if you are to be profitable in day trading, your strategy must overcome this cost of trading.
risk free rate is around 5%
so for day trading to be worthwhile, you have to make over 15%.
index investing will give you anywhere from 12-15% without cost of trading or taking on crazy leverage and risk.
considering the day volatility is low on average about 1 to 1.5% for the nifty 50 stocks. It is very very hard to stay profitable year on year.
Very difficult to get the volatility and probability on your side.
your trading strategy can make money, but you lose a big chunk of it in the cost of trading.
one of the biggest culprit is the STT/CTT and stamp duty. which can get ridiculously high.
Even if STT/CTT is deductible , your profits have to be insane to survive in this taxation environment.
so many blood suckers.