The stock, after making a weak opening, further tanked 4.97 per cent to Rs 479 on BSE.
At NSE, shares of the company dipped 4.72 per cent to Rs 480.20.
Cipla yesterday reported narrowing of its consolidated net loss to Rs 61.79 crore for the fourth quarter ended March 31.
The company had posted a net loss of Rs 92.83 crore for the corresponding period of the previous fiscal, Cipla said in a BSE filing.