What's diff between both groups of IPCC n' ATC

Jacky Singh (Assisstant) (107 Points)

22 July 2010  

Hi, I want to get clear that why in IPCC prospectus, they have bifurcated courses of both groups and both groups & ATC in which ATC has been indicated as optional.  What's the difference and will it affect my CA career if I select only both groups and not both groups and ATC

Please reply and thanks in advance.