The Palar River is located in the Bay of Bengal in the kolar district of Karnataka.
It rises in the Nandi Hills in Chikkaballapura district of Karnataka state, and flows 93 kilometres (58 mi) in Karnataka, 33 kilometres (21 mi) in Andhra Pradesh and 222 kilometres (138 mi) in Tamil Nadu before reaching its confluence into the Bay of Bengal at Vayalur about 100 kilometres (62 mi) south of Chennai. kolar district in Karnataka, India 
