The drive to Nandur industrial area, on the outskirts of Gulbarga, is barely 12 km but feels 10 times as long — it’s a backbreaking journey, jostling on non-existent roads and braving the relentless heat and dust of summer, Central India style. Madhusudan R Malu, though, has much more to complain about than just his twice-daily commute on the stretch. The director of the ₹10-crore RG Malu group of companies makes eco-friendly fly ash brick at Nandur, using raw materials such as crusher dust, fly ash and cement. “Gulbarga has about 150 units manufacturing crusher dust. Only 25 are in operation today,” he says. The rest have been declared polluting units and have been asked to stop production. In the process, the cost of crusher dust has increased from ₹200 per kg last year to a whopping ₹2,000 now. “As a result, our manufacturing cost has increased from ₹3.50 per unit to ₹5 per unit. But our selling price remains ₹5,” says the 35-year-old. This business earns only about ₹2 crore a year and he says the rising input cost will play havoc with his numbers this year. “We do not expect any increase in turnover. In fact, the rising cost of crusher dust may leave us with no profit.” He is trying to convince his customers, including the Central University in neighbouring Kadaganchi, to pay more, but “It has not been easy since the overall business environment is not very good,” he admits.