The state highways are arterial routes of a state, linking district headquarters and important towns within the state and connecting them with national highways or Highways of the neighbouring states.
There are 83 state highways in Kerala.
[1] (SH 4,SH 13,SH 20,SH 24 and SH 35 were upgraded to National highways)
Kasaragode (Nandarappadavu - Vithura -Thiruvananthapuram (Kaliyikkavilai) Highway