EBITDA margin contracted by 614bps to 27.9% in 4QFY18 vs. 34.1% in 4QFY17 due to increase in global coal prices. Adjusting for JPVL's liability, its net debt reduced by Rs31.06bn in FY18. Cost of debt dipped by 114bps YoY in 4QFY18, which brought down borrowing cost to Rs3.2bn from...