A bit of historical Information.
Due to dissatisfaction with British rule, a serious rebellion erupted in various parts of North India; Meerut cantonment's sepoy, Mangal Pandey, is widely credited as its starting point. It came to be known as the Indian Rebellion of 1857.

After the revolt failed the British, in an attempt to divide the most rebellious regions, split the Delhi region from ‘NWFP of Agra’ and merged it with Punjab, while the Ajmer- Marwar region was merged with Rajputana and Oudh was incorporated into the state. The new state was called the 'North Western Provinces of Agra and Oudh', which in 1902 was renamed as the United Provinces of Agra and Oudh. It was commonly referred to as the United Provinces or its acronym UP.

In 1920, the capital of the province was shifted from Allahabad to Lucknow. The high court continued to be at Allahabad, but a bench was established at Lucknow. Allahabad continues to be an important administrative base of today's Uttar Pradesh and has several administrative headquarters.

source:http://reference.findtarget.com