Wintac surged on Monday after it received the US FDA approval for the manufacturing plant (manufacture of pharmaceutical formulations - sterile injections and ophthalmic products) at Nelamangala, Bangalore.

Thus, the warning letter issued to the company during February 2012 on certain GMP issues gets vacated.

Shares of the company are trading at Rs 98.30, up Rs 4.65, or 4.97% at the Bombay Stock Exchange (BSE) on Monday at 11:45 a.m.

The scrip has touched an intra-day high of Rs 98.30 and low of Rs 98.30. The total volume of shares traded at the BSE is 60.

In the earlier session, the shares climbed 4.99%, or Rs 4.45, at Rs 93.65. Currently, the stock is trading down 6.38% from its 52-week high of Rs 105 and above 58.29% over the 52-week low of Rs 62.10.