The Code of Civil Procedure, 1908 is generally designed to correct procedural defects rather than to punish a plaintiff by throwing out an otherwise genuine claim, and Order I Rule 10 specifically equips the court to deal with the situation where the wrong person has been made a defendant.
- Dismiss the suit as not maintainable: dismissing an entire suit merely because the wrong defendant was initially named would defeat a potentially genuine claim on a purely technical ground, which runs against the CPC's general preference for curing defects rather than punishing the plaintiff for them.
- Permit substitution or addition of the proper defendant: Order I Rule 10 expressly empowers the court to strike out a party improperly joined, add a party who ought to have been joined, or substitute the correct defendant for the wrong one, whenever this is necessary to effectually and completely adjudicate the real questions in the suit. This directly addresses the situation of a wrongly impleaded defendant.
- Direct the plaintiff to institute a fresh suit: forcing the plaintiff to abandon the existing suit and start again would ignore the very purpose of Order I Rule 10, which exists so that the same suit can be corrected and continued rather than restarted from scratch.
- Return the plaint on the ground of mis-joinder of parties: returning the plaint is a step used for different defects, such as want of jurisdiction, and is not the remedy the Code provides for correcting mis-joinder of parties, which is instead addressed directly through amendment or substitution under Order I Rule 10.
Because Order I Rule 10 exists specifically to let the court correct a mistake in the identity of the defendant while keeping the suit alive, permitting substitution or addition of the proper defendant is the remedy the Code actually provides.
Therefore, the correct answer is permit substitution or addition of the proper defendant.