Systra, France, has completed a feasibility study of the 650km Pune - Mumbai - Ahmedabad line, while similar studies are either underway or planned for five more high-speed lines. Mott McDonald, Britain, is studying the 991km Delhi - Agra - Lucknow - Varanasi - Patna line, while Eneco, Spain, is examining the feasibility of building the 135km Kolkata Howrah - Haldia line. Consultants will be chosen soon to conduct feasibility studies for the 450km Delhi - Amritsar, Hyderabad - Chennai, and Chennai - Bangalore - Ernakulum lines. India plans to build the lines as public-private partnerships.