IPC-Sec149 Alauddin Mian v. State of Bihar, 1989(1) RCR(Criminal) 628 : AIR 1989 SC 1456 "....... This Section creates specific offence and makes every member of the unlawful assembly liable for the offence or offences committed in the course of the occurrence provided the same was/were committed in prosecution of the common object or was/were such as the members of that assembly knew to be likely to be committed. Since this Section imposes a constructive penal liability, it must be safely construed as it seeks to punish members of an unlawful assembly for the offence or offences committed by their associate or associates in carrying out the common object of the assembly. What is important in each case is to find out if the offence was committed to accomplish the common object of the assembly or was one which the members knew to be likely to be committed. There must be a nexus between the common object and the offence committed and if it is found that the same was committed to accomplish the common object every member of the assembly will become liable for the same. Therefore, any offence committed by a member of an unlawful assembly in prosecution of anyone or more of the five objects mentioned in Section 141 will render his companions constituting the unlawful assembly liable for that offence with the aid of Section 149, it is not the intention of the legislature in enacting Section 149 to render every member of an unlawful assembly liable to punishment for every offence committed by one or more of its members. In order to invoke Section 149 it must be shown that the incriminating act was done to accomplish the common object of the unlawful assembly. Even if an act incidental to the common object is committed to accomplish the common object of the unlawful assembly, it must be within the knowledge of other members as one likely to be committed in prosecution of the common object. If the members of the assembly knew or were aware of the likelihood of a particular offence being committed in prosecution of the common object, they would be liable for the same under Section 149."