Interest on fixed deposit would be added to your taxable income (no matter, for how much time the money has been invested) and would be taxed as per slab rates. Tax applicable may be 0-30.6% depending on person's other income.
Gains from debt mutual funds, fixed maturity plans (FMP) mutual funds and all such non-equity mutual funds, if they are redeemed in less than a year have same taxabliity as FD interest as above.
Gains from non-equity mutual funds with more than a year's investment would be taxable at a flat rate of 10% or 20% with indexation benefit.
Computation for income tax on LTG with indexation benefit:
Purchase Year = A, Purchase Cost = P, Cost Inflation Index (CII) for purchase year = X
Sale Year = B, Selling price = Q, CII for sale year = Y
Indexed Purchase price = P x (Y/X) = R
Long term capital gain = Q - R = S
Income tax on capital gain = S x 20%
CII has increased by 8-12% rate in last 3-4 years. So if you invest into a non-equity mutual fund now before 31st March, 2012 and sell it after 1st April, 2013, you may have zero tax on gains.
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