Original: Later at its height, gradually added, were the annexed princely states of Uttar Pradesh, Uttarakhand, Punjab in India, Haryana, and Himachal Pradesh and portions of Chhatisgarh, Madhya Pradesh, and Maharashtra in present day India, including the provinces of North West Frontier and Punjab in Pakistan, and Burma (present day Myanmar).
Simplified: The areas of India that used to be part of the presidency include, Uttar Pradesh, Uttarakhand, Punjab, Haryana, and Himachal Pradesh as well as parts of Chhatisgarh, Madhya Pradesh, and Maharashtra.