I am lil but confused regarding the income tax section.....there is always a numerical question in this section that requires to calculate tax payable....i want to know for this purpose shud we refer the current tax slab means if we are required to calculate the tax payable for the period 2011-2012 then the respective tax rates shud be used or we are supposed to calculate the tax payable on the basis of hypothetical rates?....second thing i want to know that do they publish every year a new edition for income tax buk coz i have heard that every year some changes are made in income tax law...so if it is written to get the latest edition then does it mean that we are supposed to refer this years edition....kindly answer my long query

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