The Thermax stock has dropped 37.9 per cent in the trailing 12 months to September, underperforming the BSE Sensex, which is down just 4.8 per centThe Thermax stock has dropped 37.9 per cent in the trailing 12 months to September, underperforming the BSE Sensex, which is down just 4.8 per cent Latest News [ SOBAN NEWS: International and National ]