All the major characters in the play are morally corrupt. The Mayor and head of the district uses power arbitrarily and receives bribes.
The Charity Commissioner is completely negligent in his duties, the hospital is dirty and the welfare of the patients is of no concern to him.
The Postman indulges in professional misconduct, the Judge is carefree and careless and confesses to taking a bribe of Borzoi puppies.
Hlestakov is greedy, extravagant and a gambler.
All these corrupt practices constitute the major pre-occupation in the play.
The candidates understood the requirements of this question.