Lupin Ltd. reported a surprise loss in the quarter ended March due to a one-time provision for impairment of certain assets. The company reported a loss of Rs 776.22 crore as compared with a profit of Rs 380 crore in the same quarter last year. Material cost increased by 577 bp to 34.2% of sales, at Rs. 1,362.6 crore compared to Rs. 1,185.1 crore in Q4 FY2017. Personnel cost increased by 131 bp to 18.3% of sales, at Rs. 728.7...