Detailed description is Security Main Line is a vital transportation artery in New Delhi, India, running through the heart of the city. It connects various parts of the city, including the Indira Gandhi International Airport, the New Delhi Railway Station, and the city center. The line is operated by the Delhi Metro Rail Corporation (DMRC) and comprises a network of underground and elevated lines.. . The Security Main Line begins at the Indira Gandhi International Airport and runs through the city's central business district, passing through areas such as Connaught Place, Rajiv Chowk, and Karol Bagh. It then continues to the New Delhi Railway Station, where it connects with the Northern Railway Line. The line is equipped with modern facilities, including air conditioning, CCTV surveillance, and passenger information displays.. . One of the main features of the Security Main Line is its efficiency. It operates on a regular schedule, with trains running every few minutes during peak hours. This ensures that commuters can reach their destinations quickly and efficiently. The line also provides access to a wide range of landmarks and attractions in the city, including the Red Fort, the Qutub Minar, and the India Gate.. . Security is a major concern for the DMRC,
