The Jindal pufwalls shall be made of Sandwich panels. The sandwich panels shall be made out of 0.35 mm thick Pre coated steel sheet (white colour) on both side of PUF (Polyurethane foam). The total thickness of panel shall be 30-150 mm. The panels are join together by tongue and groove method. The density of PUF shall be 36 Kg / cmt( ± 2 Kgs.).