Interest under section 234b and 234c

Mannu (Scientist) (59 Points)

25 July 2011  

Hi ,

My total tax payable for this AY2011-2012 = 13618

TDS decuted by my employer =13078

I saw later in july that I have to some tax liability , should  i pay any interest on this tax payable as the date 15-03-2011 (last date of payment of advance tax)  has already passed .

Please help me to know what will be the interest payable under 234a,234b,234c ? 

Any rules how to caluclate this will aso offer great help .!!