Withdraw NSC with in 1-2 years?

[CONFUSED]

I have bought NSC for tax saving purpose since 2008. I have invested Rs.50000/- in year 2008 and Rs.55000/- in year 2009. Now I am looking to buy my own flat so wanted to withdraw the above NSC. I have a query – Can I withdraw the above NSC?

Premature encashment is permitted, only on the following three contingencies -
(a) on the death of the holder or any of the holders in the case of joint holders;
(b) on forfeiture by a pledgee being a Gazetted Government Officer when the pledge is in conformity with these rules; or
(c) when ordered by a court of law.