Mullaperiyar Dam is located on which river?

Correct answer: Periyar

The direct answer is C, Periyar. Mullaperiyar Dam is built across the Periyar River in Kerala’s highland region. The name itself provides a strong clue: Mullaperiyar combines the name of the Mullayar and Periyar rivers, and the dam is commonly identified with the Periyar River. Option A, Ganga, is incorrect because the dam is not on the Ganga system. Option B, Tapi, is incorrect because the Tapi flows through central and western India and is unrelated to Mullaperiyar Dam. Option C is correct because the dam is on the Periyar River. Option D, Sabarmati, is incorrect because that river is associated mainly with Gujarat and is not the river crossed by this dam. The reasoning is: Mullaperiyar Dam → Periyar River → Kerala region. Memory cue: the word “Periyar” appears directly in the dam’s name, but always use the river fact rather than relying only on the name.