How much penalty I have to pay?

Ashish (Professional) (117 Points)

30 April 2010  

I am self employed professional. For year 2010-2011, my total tax is calculated is Rs 74,000 and I paid Rs 20,000 on 1st Dec 2009 as advance tax.. now i am paying my remaining tax on 3rd May, please tell me how much interest i have to pay..? Is there any penalty?

And how this interest is calculated.