Chautala Suspected The Guard Of That Train

Gulgule goes to the guard disguised as a friend of the person who had ordered to remove the compartment from the train. Chandramukhi catches him and asks him for the name of the culprit but he does not know him. Chandramukhi makes a plan to catch him by arranging a fake marriage for Laali. How will Chandramukhi catch the culprit now?