Common object” may also be developed at the time of incident

 Ramachandran and others v. State (2011) 9 SCC 257

 “27. Thus, this Court has been very cautious in a catena of judgments that where general allegations are made against a large number of persons the court would categorically scrutinise the evidence and hesitate to convict the large number of persons if the evidence available on record is vague. It is obligatory on the part of the court to examine that if the offence committed is not in direct prosecution of the common object, it yet may fall under the second part of Section 149 IPC, if the offence was such as the members knew was likely to be committed. Further inference has to be drawn as to what was the number of persons; how many of them were merely passive witnesses; what were their arms and weapons. The number and nature of injuries is also relevant to be considered. “Common object” may also be developed at the time of incident”