Kolkata is the capital of the Indian state of West Bengal. It is the prime business, commercial, and financial hub of eastern India and the main port of communication for the North-East Indian states, as well as has the third-largest urban economy of India. The Port of Kolkata is India's oldest operating port and its sole major riverine port. Kolkata is known as the "cultural capital of India" for the city's historical and architectural significance. It is a demographically diverse city, the culture of Kolkata features distinctively close-knit neighborhoods and freestyle conversations.
Kolkata is home to West Bengal's film industry Tollywood, and cultural institutions, such as the Academy of Fine Arts, the Victoria Memorial, the Asiatic Society, the Indian Museum and the National Library of India. Kolkata also hosts the Agri Horticultural Society of India, the Geological Survey of India, the Botanical Survey of India, the Calcutta Mathematical Society, the Indian Science Congress Association, the Zoological Survey of India, the Institution of Engineers, the Anthropological Survey of India and the Indian Public Health Association.
Kolkata has a tropical wet-and-dry climate. Summers (March–June) are hot and humid, with temperatures the temperature of 30 °C to 40 °C. Winter lasts for roughly two-and-a-half months, with seasonal lows dipping to 9–11 °C in December and January. May is the hottest month in this city. The winter is mild and very comfortable weather pertains over the city throughout this season. Often, in April–June, the city is struck by heavy rains or dusty squalls that are followed by thunderstorms or hailstorms, bringing cooling relief from the prevailing humidity.
Kolkata has been called the "City of Furious, Creative Energy" as well as the "cultural capital of India''. Key elements of Kolkata's cuisine include rice and a fish curry known as macher jhol, which can be accompanied by desserts such as roshogolla, sandesh, and a sweet yoghurt known as mishti dohi. Bengal's large range of seafood dishes includes various preparations of ilish, street foods such as beguni, kati roll, puchka and Indian Chinese cuisine from Chinatown are popular.
Durga Puja, held in September–October, is Kolkata's most important and largest festival, it is an occasion for glamorous celebrations and artistic decorations. The Bengali New Year, Poush Parbon is among the city's other festivals. Other festivals celebrated are Kali Puja, Diwali, Holi, Jagaddhatri Puja, Saraswati Puja, Rathayatra, Janmashtami, Maha Shivratri, Vishwakarma Puja, Lakshmi Puja, Ganesh Chathurthi, Makar Sankranti, Gajan, Kalpataru Day, Bhai Phonta, Maghotsab, Eid, Muharram, Christmas, Buddha Purnima and Mahavir Jayanti.