The stock dropped by 7.18 per cent to Rs 745.95, its 52-week low, on BSE.
At NSE, shares of the company slipped by 7.27 per cent to hit a one-year low of Rs 744.95.
The stock was the biggest loser on Sensex and Nifty indices.
Drug major Sun Pharma on Saturday reported a 46.02 per cent dip in consolidated net profit to Rs 1,106.66 crore for the quarter ended September 30, due to lower sales growth, volatile currency movements and supply constraints.
Consolidated net sales of the company declined to Rs 6,803.31 crore for the quarter under consideration as against Rs 7,979.31 crore for the same period a year ago.
Sun Pharma Managing Director Dilip Shanghvi had said: "Our performance for the quarter and first half FY16 has been impacted by lower sales growth, volatile currency movements and supply constraints.