CORRECT answer is option 2, i.e. Mahabalipuram.A MONUMENT at Mahabalipuram, in the Kancheepuram district of Tamil Nadu, situated on the Coromandel Coast of the Bay of Bengal, depicts the descent of the GANGES from heaven, in the form of relief sculpture.Relief sculpture is a giant open-air rock, carved on two monolithic rock boulders.The relief depicts the story of the descent of river Ganges was led by Bhagiratha.Thus, waters of the Ganges are believed to possess supernatural powers.The ARJUNA’s Penance is also PORTRAYED in stone at the Pallava heritage site.