Sand dunes are found along
Western Ghats
Easter Ghats
Thothukkudi
Attur Pass
The highest peak in the Nilgiris is
Anaimalai
Doddabeta
Mahendragiri
Agasthiar Hills
Mettur Dam is in
Dharmapuri
Salem
Erode
Mysore
The Cauveri river originates in
Cardamom hills
Agasthya hills
Thalaikaveri
Siva samudram