It is a happy news for the people of Nellore and Kadapa districts in Andhra Pradesh as the construction of rail track between Venkatachalam in Nellore district and Obulavaripalli in the Kadapa district would be completed by the end May 2018. It is a rail tunnel construction work with a length of over 7.5 km. With this, the distance between the two districts will be shortened. This railway tunnel is the biggest in South India and second best in Asia. Watch the video for more information.