Concerining about attempts in big 4 plz reply


(Guest)

do big 4 companies call for students who have completed ipcc in 2 or 3 attempts?

do they select candidates who have qualified only single group(G-1 OF IPCC).?

Should we posses merit marks in order to gain eligibility ?

What are the areas of subjects we should be perfect in order to face the interview?

should we have depth kowledge of the company whom we are attending for interview?

plzzzzzz clarify my doubts without hesitatingly