tax liabilities urgent

I had take Bank FDR  - 5 year  in FY 2010-11 & claim deduction under section 80 C in income tax return in Fy 2010-11 , now I want encash the Bank FDR , Pls clear the tax liabilities on FDR amount ( Interest & principal ) & in which year is taxable. year of maturity or year of FDR taken.