Delhi-Mumbai Industrial Corridor is a mega infra-structure project to which Japan is also providing financial and technical aids. The project covers a length of 1483 km between Delhi and Mumbai passing through the five states and one union territory - U.P, National Capital Region of Delhi, Haryana, Rajasthan, Gujarat and Maharashtra, and not through Madhya Pradesh. It has end terminals at Dadri in the National Capital Region of Delhi and Jawaharlal Nehru Port near Mumbai and not Mumbai Port.
Distribution of length of the corridor is
Rajasthan (39%)
Gujarat (38%)
Haryana (10%)
Maharashtra (10%)
Uttar Pradesh (1.5%)
National Capital Region of Delhi (1.5%)
Therefore, the longest length of corridor is in Rajasthan and not Gujarat.
Hence, neither of the given statements is correct.