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.
Kolkata was the original headquarters of IBM Corporation in India before shifting to Bangalore on its return to operations in the country.
The post of the Mayor of Calcutta was created in 1923 by an act of the Corporation. Deshabandhu Chittaranjan Das won the election in 1924 and became the first mayor of Calcutta.
The Calcutta Mounted Police was born in 1912. They were virtually the body-guards of the Viceroy and the Governor. In later years, the 'Mounted Police' became indispensable for combating sudden violent scarmishes and reinstating peace and order in the anarchy-prone areas. At the inception horses for the 'Mounted Police' were brought from Australia. These horses were cared and looked after meticulously but of when they grew old, they were shot dead mercilessly. Then, they were sent to the zoo for being fed by the carnivores.
Construction of India’s first subway system began in Calcutta in 1973. In 1986, the first section of the subway system, the first in India, was opened in the city.
Birla Planetarium is one of the oldest Planetariums in India. The only planetarium in the country, whose dome houses a collection of projectors and optical equipments expensively imported from East Germany. It is the largest planetarium in South-East Asia and the second largest planetarium in the world.
The Calcutta Medical College which was founded in 1835, is Asia’s oldest medical school.
The Grand Trunk Road (National Highway No. 2) is one of the oldest road routes in India and it runs from Howrah to Kashmir.
Taj Bengal, Kolkata, was the first hotel which is having its own ATM. Name the bank which setup the ATM for Taj Bengal is HDFC Bank.
Kolkata and Mumbai are the only two cities in India where the honorary designation of the Sheriff still exists.