After two dull quarters when sales grew by just over 7%- sales rejuvenated in Q1 - grew by 15.5% to Rs 335.13 crs ($50.2m) compared to Rs 290.07 crs ($43.m) in the same quarter a year ago. Stoked by lower raw material and fuel & power costs, OPMs expanded by some 600 bps to 15.8%...