Which of the following geographical features or phenomena is/are associated with the Peninsular Block of India?

1. Submergence of parts of the western coast due to tectonic activity

2. Presence of residual mountain ranges such as the Veliconda hills and Mahendragiri hills

3. Deep, V-shaped river valleys formed by fast-flowing rivers

Statement 1 is correct: The Western Coast of India has experienced tectonic movements resulting in both submergence and emergence. The northern part of the west coast (including parts of Maharashtra and Gujarat) features submerged coastlines due to faulting and tectonic activity during the separation of the Indian plate from Africa.