Geomorphology of the Peninsular Block

Statements 1 and 2 are correct. The Peninsular Block is a stable, ancient shield mass that has undergone local faulting and coastal subsidence, resulting in the tectonic submergence of sections of its western coast. It features old, relict mountain systems like the Veliconda and Mahendragiri hills, which have been eroded into residual ranges over geological time. Statement 3 is incorrect because deep, steep V-shaped valleys carved by fast-flowing rivers are characteristic markers of the young, uplifting Himalayan river system, whereas Peninsular rivers typically flow through broad, shallow, graded valleys.