GAIL (India) reported profit after tax of Rs 1020.92 crore in Q4FY18 up by 292% compared to Rs 260.16 crore in Q4FY17 while net sales of the company rose 15% to Rs 15430.69 crore. OPM of the company fell 60 bps to 11% in Q4FY'18 compared to Q4FY'17 leading to 9% increase in...