An unusual incident of mishap has taken place in the heart of Chennai city, today i . e. on Sunday. The road at Mount Road in Chennai has caved in suddenly and the vehicles fell into this cavity and stuck there. The visuals of a bus and a car caved into this hole is visible and this sudden cave in of road has shocked the people. The reasons for the cave-in are not known yet and it has to be verified if there are any tunnels are nalas present under this road.