The Securities and Exchange Board of India has banned 19 entities for manipulating the price of four mid-cap stocks Pipavav Defence & Offshore Engineering, Tulip Telecom, Glodyne Technoserve and Parsvnath Developers in an ex-parte interim order with immediate effect.

All the four scrips lost between 19.91 per cent and 26.02 per cent on July 26.

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