GK Compilation From Harappan Civilization And Vedic Age: The elaborate drainage system is a unique feature of the- Indus Valley Civilization. From where a series of ‘Fire Altars’ on mud-brick platforms were discovered- Kalibangan. Pashupati Shiva is a three-faced deity surrounded by which animals- Elephant, Tiger, Buffalo & Rhinoceros. Indus people believed in ghosts and