Energy and environmental solutions major Thermax Ltd has posted a 20 per cent dip in its third quarter net profit that stood at Rs 76.4 crore against Rs 95.5 crore in the same quarter of the previous fiscal. Total income from operations in the quarter under review stood at Rs 1,047 crore against Rs 1,269 crore in Q3 FY 12, which is approximately 17 per cent lower. During the quarter, Thermax order intake was Rs 1,284 crore against Rs 590 crore for the same quarter in the previous year.