hi ambica.... sitting for both groups or in a single group depends on your status of preparation and personal capability....
i don't know whether you gave both groups in may 2012 or not.
if u have preparation for both the groups and you have to just revise them then there is no question of writing a single group in up coming exam.....
if you don't have preparation in a single group or so then just sit back, calculate the time left , and divide it by number of papers you have to study and make you strategy accordingly......
(i am really confused with it...as i heard ppl who give one group wont pass is tat true?)
i cleared my pcc exams by writing one group at a time in may and nov 2009. so ,what you hv heard from your friends is totally wrong and baseless ...
i don't know the current status of your preparation .....if u hv preparation in place then just revise it again and again to make it solid and go for both the groups......
ICAI does not bother whether u hv written single group or both the groups......ICAI do bother about the quality of papers u hv written in the exam.....
writing high quality answers is the key to get good marks and solid preapration is the base to write high quality answers .......
finally, whether you give single/both the groups solid preparation is needed to clear CA exams.......