Consider the following with respect to the Treaty of Sugauli (1816).
- It was signed between the British East India Company and Awadh after the Anglo-Nepalese War.
- The treaty fixed the Mahakali River as Awadh’s western boundary.
- Under this treaty, Kumaon, Garhwal, and Sikkim were annexed with Nepal by the British.
Which of the above statements are correct?