Calcutta, once the capital of British India, has the largest number of heritage buildings.
India’s first cellular telephone service was started in Kolkata in July 31, 1995.
Kolkata has a nickname, the 'City of Palaces' , because of the abundance of European-style buildings.
The Calcutta Rajdhani Express was introduced in 1969 with a maximum allowed speed of 120km/h, which was then the new speed limit for trains in India.
The University of Calcutta, India’s second oldest modern university was established in 1857.
South Point High School, Kolkata entered the Guinness Book of Records (from 1984 to 1992) as the school with maximum student enrollment.
India has 7 Nobel Prize winners, either by birth or citizenship, to date and 4 of them are directly connected to Kolkata.
Kolkata is sister city to Long Beach, California.
The Royal Calcutta Golf Club, established in 1829, is the oldest golf club in India, and the first outside Great Britain.
The European physicians in Calcutta met on 1st March.1823, to found the 'Calcutta Medical & Physical Society'. The venue of the meeting was The Asiatic Society.
