Shimla, also known as Simla, is the capital and the largest city of the northern Indian state of Himachal Pradesh. In 1864, Shimla was declared the summer capital of British India. After independence, the city became the capital of East Punjab and was later made the capital city of Himachal Pradesh. It is the largest and most developed city of Himachal Pradesh, as well as the state's principal commercial, cultural and educational centre.