After falling 11.2 per cent to Rs 1,181 in intra-day trade on the BSE, shares of the company finally ended at Rs 1,243.35, down 6.52 per cent.
On the NSE, shares plunged 6.35 per cent to close at Rs 1,243.55.
In terms of volume, 13.33 lakh shares of the company changed hands at the BSE and over 82 lakh shares were traded at the NSE during the day.
Wockhardt's L1 Chikalthana facility was under import alert for its drug Metoprolol XR, used for treating blood pressure, while the Waluj facility that makes injectables and solid dosages was also put under import restrictions by the US Food and Drug Administration (USFDA) in 2013.
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In a filing to the BSE today, the company said that during an inspection of the facilities at L1 Chikalthana and Waluj in Aurangabad, Maharashtra, the USFDA made some observations pertaining to batches of some products manufactured prior to the import alerts.
Several batches of other products, manufactured prior to the import alerts, may still be in the US market, it added.