AIRCRAFT RETURN BACK TO DEPARTURE AERODROME DUE ENGINE NO. 2 FAILURE. DELHI ACC INFORMED THAT MXD132 IS RETURNING BACK TO LAHORE DUE ENGINE NO. 2 FAILURE. INFORMATION WAS PASSED TO THE AIRPORT AUTHORITIES AND REST ALL CONCERNED. NO ASSISTANCE WAS REQUIRED ON ARRIVAL AS REPORTED BY THE PILOT. AIRCRAFT WAS PARKED AT STAND 18. THOROUGH INSPECTION OF BOTH RUNWAYS CARRIED OUT AFTER LANDING. NO FOD FOUND. AIRCRAFT WAS PARKED AT STAND 18. NO TRAFFIC AFFECTED.