Who may be joined as defendants. – All persons may be joined in one suit as defendants where-
(a) any right to relief in respect of, or arising out of, the same act or transaction or series of acts or transactions is alleged to exist against such persons, whether jointly, severally or in the alternative; and
(b) if separate suits were brought against such persons, any common question of law or fact would arise.]
For Complete Code of Civil Procedure, 1908 Bare Act. Click here.