State Highway 3 connects
Nedumangad with
Kadukkara near the
Kerala–
Tamil Nadu border, in
Thiruvananthapuram District. State Highway 3 starts at Nedumangad Toll junction and runs south-eastwards touching Nayapalli, Paruthipally junction, Kudappanamoodu and
Vellarada before reaching Kadukkara near the state boundary. The highway is 37.5 km long in the state.
