Comment on Taxation for Traders - Introduction
File income tax in the name of your father itself. Since you have done active trading, you can consider your father as a trader and hence show both F&O and Short term equtiy as non-speculative business income. So the net gain for the year will be 4.7 lks. upto 2.5lks no tax, on the next 2.2lks 10%, so around 22k as tax. Check this module: http://zerodha.com/varsity/module/markets-and-taxation/