The stock tanked 19.88 per cent to Rs 13.50 - its 52-week low - on BSE.
At NSE, shares of the company plummeted 19.94 per cent to touch its one-year low of Rs 13.45.
Simbhaoli Sugars is one of the largest sugar mills in the country.
BSE has sought clarification from the company on this issue.
The CBI yesterday carried out searches at eight premises including residences of the directors, factory, corporate office and registered office of the company in Delhi, Hapur and Noida, CBI spokesperson Abhishek Dayal had said.
Shares of OBC also plunged 12.52 per cent to Rs 92.50 - its one-year low - on BSE.