The company had posted a net profit of Rs 623 million during the same period of the previous fiscal, Pfizer said in a regulatory filing.
Revenue from operations for the quarter under review stood at Rs 4.565 billion as compared to Rs 5.102 billion in the same period of the last year.
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It said net profit after tax (including other comprehensive income) for nine months ended December 31, 2017 was Rs 2.549 billion as against Rs 2.676 billion in the year-ago period.
The company's stock closed 4.30 per cent up at Rs 2,201.55 apiece on BSE on Wednesday.