Is nsc taxable (individual salaried employee)

Can I reinvest now (after closing NSC bond) of same amount interest + Principal and save tax?

Hi, SOrry, My query is not clear, In case if I reinvest the NSC after withdrawal, can the tax which I earned earlier is consider as taxable income? Ex: Assume, I got 850/-Rs INR as interest when I withdraw. Now, it I invest both 850/-Rs as part of NSC, shall this will be amount is considered under taxable income? I can understand, I can save tax from 80C. But I need to reduce my taxable income not by 80C but through reinvestment.