Explanation: The Kolkata Metro, also known as the Kolkata Metro Rail, is a significant part of the urban transportation infrastructure in Kolkata, West Bengal. It is the first metro rail system in India, inaugurated in 1984. The metro system was a pioneering project that marked a new era in urban transportation in India, setting a benchmark for other cities to follow.
The idea of a metro system in Kolkata was first proposed in the 1970s, with detailed planning and feasibility studies conducted during that period. The construction of the metro began in the early 1980s, and the first line was inaugurated on July 24, 1984. This inaugural line connected the Esplanade area to Tollygunge, covering a distance of approximately 6.8 kilometers. The metro system was initially a joint venture between the Indian government and the West Bengal government, with the Indian government providing the majority of the funding.
The metro system has since expanded significantly, with multiple lines and extensions being added over the years. The expansion has been driven by the need to address the growing population and traffic congestion in Kolkata. The metro system has become an essential part of the city's public transportation network, providing a reliable and efficient mode of travel for millions of commuters daily.
Understanding the historical context of the Kolkata Metro is crucial for students of West Bengal General Knowledge (GK). It is not only a significant milestone in the city's urban development but also a symbol of modernization and progress. The metro system's inauguration in 1984 marked the beginning of a new era in urban transportation in India, and it continues to play a vital role in the city's infrastructure and daily life.
In summary, the correct answer is 1984, as this is the year when the first metro in Kolkata was inaugurated, making it the first metro rail system in India. This date is a key historical fact in the context of West Bengal GK and urban development in India.