State Highway 21 (Kerala)
State Highway 21 is a State Highway in Kerala, India that starts in Chalakudy and ends at the state boundary. The highway is 86.0 km long.Chalakudy - SH 21 Athirappilly Road - Vettilapara - Athirappilly Water Falls - Vazhachal - Peringalkuthu - Approach road to Sholayar Power House - Anamala - State boundaryTownships on the State Highway