The stock slipped 3.29 per cent to Rs 508.80 on the BSE.
At the NSE, it fell 3.32 per cent to Rs 508.55.
Pharma major Sun Pharmaceutical Industries yesterday reported a 59.19 per cent drop in consolidated net profit to Rs 912.12 crore for the September quarter, mainly on account of degrowth in the US sales.
The company had posted a net profit of Rs 2,235.14 crore for the corresponding period of the previous fiscal, Sun Pharma said in a BSE filing.