The Sivalik Hills is a mountain range of the outer Himalayas also known as Manak Parbat in ancient times. Shivalik literally means 'tresses of Shiva’. This range is about long enclosing an area that starts almost from the Indus and ends close to the Brahmaputra, with a gap of about between the Teesta and Raidak rivers in Assam. The width of the Sivalik Hills varies from , their average elevation is .

The Sivalik Hills is a mountain range of the outer Himalayas also known as Manak Parbat in ancient times. Shivalik literally means 'tresses of Shiva’. This range is about long enclosing an area that starts almost from the Indus and ends close to the Brahmaputra, with a gap of about between the Teesta and Raidak rivers in Assam. The width of the Sivalik Hills varies from , their average elevation is .