Income Tax Calculator with interest calculation u/s 234A, 234B., 234C

Income tax returns for individuals must be filed before July 31. That means, your income tax return for the income earned during April 2007 to March 2008 will have to be filed before the 31st of July 2008.

But don't worry if you have missed the last date. you are not liable to any penalty but only penal interest i.e. u/s 234A, 234B, 234C

So I am giving a calculator for calculation of Interest u/s 234A, 234B, 234C. Please follow these instruction before using this calculator.
1) Enter date format as mm/dd/year.
2) Enter total income excluding any capital gain.
3) Read all dates given on this calculator as mm/dd/year
4) calculation interest u/s 234B is done by this calculator only when the advance tax is paid less then 90% of total tax.


Notes:
1)Please let me know immediately if you find any errors or mistakes in this calculator by using below form. I will immediately rectify that mistakes and i will be very thankful for this.
2)It may be clarified that interest u/s 234B and 234C shall not be payable if the advance tax payable is less that Rs.5000.
3) please refer to these posts for more knowledge about Advance Income Tax such as last dates, calculation of interest etc.(click here)