my wife earns salary income 1,80,000+she earns some 2.25L from running a beauty parlour + she earned 15000 commission from a brokerage house. how to calculate income tax (if any) and Which Income Tax FORM to be used. She pays 1.56 lakh interest on housing loan and 70000 principal on housing loan, she earned 7.5 lakh as long term capital gain ( this is set off to 0 after indexation) on selling another house. Please Guide. urgent.