The Maitree Express connects India with Bangladesh, specifically running between Kolkata (India) and Dhaka (Bangladesh). It is a passenger train service that facilitates travel and people-to-people contact between the two neighboring countries.

Each year on 24th May, Commonwealth Day is commemorated. Commonwealth Day is observed on the birthday of Queen Victoria of England, who was born on 24th May, 1819, and is observed by all countries which were once a colony of the British Empire.

Asia's largest sugar mill is located in Khatouli, Muzaffarnagar district of Uttar Pradesh. The Triveni Sugar Mill in Khatouli is the largest in Asia in terms of production and storage capacity. The mill has been operational since 1933. 

"Unbreakable" is a book written by Mary Kom, the renowned Indian boxer and Olympic bronze medalist. The book details her life, struggles, and achievements in the field of boxing. Mary Kom is a celebrated athlete and a prominent figure in Indian sports.

the Bengal Tiger (Panthera tigris tigris) is the national animal of India. The Bengal Tiger was adopted as the national animal in 1972 due to its significance in Indian traditions and its presence as a symbol of strength and grace.