Gross margin expanded 45bp YoY to 68% due to a better product mix. Reduced remediation cost (INR40m v/s INR100m in 4QFY18) and better operating leverage led to lower other expenses (-520bp YoY). As a result, EBITDA margin expanded at an even higher rate of 590bp YoY to 20.9% (our estimate: 17.4%). EBITDA was up 49% YoY at INR1.7b (our estimate: INR1.5b), while PAT increased 71% YoY to INR1b (our estimate: INR873m)....