One can understand the obsession for Day Trading by just doing a Search on Google for the Words like – Day Trading, Intraday Trading Tips, Day Trading Tips and the number of sites that pop up catering to it.
BSE, an exchange in India, mentions itself to be the fastest exchange in the world.
Nifty 50 index is world’s most actively traded derivatives contract: Survey – Link
Majority of brokers have 90 – 96% of their business coming from Derivatives
There are a bunch of Discount Brokers with Rs. 0-20 as broking change.