Final registration clarifications- for ipcc completed

Yes it is not mandatory to register for final along with articleship registration. You can register after at any later time. But register on time to receive the Study material on time..

no it is not mandatory to get register for final along with articleship

first u have to get registered for articleship after clearing 1st or both groups ipcc 

then later on u can register for final...

u have to get register to final bfore 9 months from the month in which ca final attempt get due