Derivatives taxation

Hello members

One of my relative is trading in derivatives and i managed to get statements from them. There are two statements, one is 'Client wise global net position (Cash cumulatives)''

To be taxed under sec 111A @ 15 % on gains if the purchase and sales is made through Delivery in DP and security transaction tax is paid on sales, otherwise its speculation income and to be added to taxable income. 

and ''Client wise global net position (derivative cumulatives)''.

To be added to net taxable income as speculation income and taxed as per slab, (if total is negetive balance, it can not be adjusted with any other income except speculation)

The statement consists of items of purchase and sale. I wanted to know more details as to what the statement is all about, and profit/loss as indicated in the statement, will it be taxed. Or is there any further calculations required to be made