The correct answer to this open question is the following.
As an East India Company representative sending a report back to England about the contributions of Lord Cornwallis to Indian Civil Service, I would write the following.
In my letter, I would say that General Charles Cornwallis, has had the knack to change the way the Indian society lived by installing new process to improve the administration of the country, improve the basic services, changed the way revenue was collected, fixed the court services, and reduced the nepotism inside the British east India company.