The Kosi River, originating in Nepal, is known as the 'Sorrow of Bengal' due to frequent floods. It flows through UP before entering Bihar.

UP shares borders with 8 states: Bihar, Jharkhand, Chhattisgarh, Madhya Pradesh, Rajasthan, Haryana, Delhi, and Uttarakhand.

Uttar Pradesh has been the most populous state in India since the first post-independence census in 1951. At that time, its population was recorded at approximately 60.3 million (6.03 crore).

The Lucknow Pact was signed in 1916 between the Indian National Congress and All-India Muslim League to secure joint demands for constitutional reforms.

The Bara Imambara was not built by a Mughal emperor; it was built by Nawab Asaf-ud-Daula, the Fourth Nawab of Awadh, in 1784.

Lucknow is the capital of Uttar Pradesh and the largest city in the state by population.

Chauraschi Gumbad (84 domes) is a historical structure located in Jaunpur district, built during the Sharqi dynasty period.

The Ganga (Ganges) River is the longest river flowing through UP, spanning a significant length across the state.

The Battle of Plassey was fought between Robert Clive of the British East India Company and Siraj-ud-Daulah, the Nawab of Bengal.

The Taj Mahal in Agra is often referred to as the 'Jewel of India' and is one of the most famous UNESCO World Heritage Sites.