The Hyderabad–Bangalore High Speed Rail Corridor is a proposed high-speed rail line connecting India's two southern metros, Hyderabad and Bangalore. When completed, it will be Southern India's second high-speed rail line along with Chennai–Mysuru high-speed rail corridor. It is also said to be an extension of Mumbai-Hyderabad line. The National Rail Plan (NRP) stated that several major cities of India would connected via high-speed rail by 2051. Extension of Mumbai–Hyderabad line to Bangalore, thus linking Mumbai with Chennai is a part of the plan.