HIL Limited refers to the well-known building materials and construction solutions enterprise that was originally established as Hyderabad Industries Limited. As a flagship company of the CK Birla Group, the enterprise has undergone corporate rebranding to Birlanu Limited. It manufactures sustainable construction products, including fibre cement roofing sheets under the Charminar brand, Aerocon AAC blocks and panels, wall putty, plumbing pipes, and thermal insulation solutions across multiple manufacturing plants, distributing its product portfolio to domestic and international markets.