Sun Pharmaceutical Industries hit a four-year low of Rs 451 a share on the BSE exchange, a day before the largest medicine exporter is to announce its quarterly results.
The stock had fallen five per cent on Wednesday to Rs 474.7, after a 31 per cent drop in sales for US subsidiary Taro. The company had cited a "difficult generic pricing environment" for the downfall.
This has mean a nearly 20 per cent drop in the share over 16 trading sessions since the recent high of Rs 588 on July 19. A Bloomberg poll average of 18 analysts says the

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