taxation of short term capital gain

 




Senario1: If I buy a share in march 2010 and sell it in june 2010. 

- Cost = cost of share + brokerage + all taxes ( except security transaction tax)

- Sale proceeds = Sale value - ( brokerage + all taxes except security transaction tax)

- Sale value - cost value = STCG

 
Senario2: If I buy shares in April 2010 and hold it.

- Same method applies to cost and will continue in holding.

Request your help in calculation stcg for both senarios.
Senario 1: should i deduct the brokerage and taxes from the stcg for the share I purchase in mar 2010 (for A.Y. 2011-12)
Senario2: is the brokerage and taxes for the share i hold are deductible from stcg gained from other trades.