Cost of construction going up and paucity of skilled labour are resulting in high outgo for infrastructure. Besides environmental factors are also making people to look for alternative materials that will reduce energy consumption or result in lesser utilisation of precious natural resources. Pre-fabricated glass-fibre reinforced gypsum (GFRG) walls provide an alternative that allows faster construction saving time, using eco-friendly material and at a lesser cost as well. GFRG is made by using gypsum, a waste produced while manufacturing fertilizers. It piles up at fertilizer plants and its disposal is a big problem, he says. The material for the pre-fab walls is made by reinforcing it with glass fiber. The Kochi unit makes 12-metre-long panels with 3 metres of height.