Karbude Tunnel is the second longest rail tunnel in India located on the Konkan Railway route near Ratnagiri in Maharashtra. The Karbude tunnel is 6.5 km long and one of the India’s biggest engineering marvels. Ratnagiri region is full of lush greenery and more, it is well famous for for different varieties of Mangoes. Konkan Railway runs from Mangalore in Karnataka to Mumbai in Maharashtra through Goa, along the west coast of India and Western Ghats.