13 March 2009
You can pay this on 14-03-09. If you still failed to do so you can pay this on 16-03-09. It's a call of ITO for consideration, but you can fight on that. There is case law for that. Soory i can't provide you the details of case. But i am sure the case law will help you for that.
13 March 2009
Payment can be made on 16/3/2009. No harm and interest will not be levied. Pl refer CBDT circular 676 dt 14/1/1994 reported in 205 ITR (St)330.