Sun Pharmaceutical Industries
The drugmaker had said in May sales would grow 18-20 percent in FY13.
Sun Pharma reported a 46.5 percent drop in September quarter profit to 3.2 billion rupees after it set aside 5.84 billion rupees towards a potential compensation it might have to pay in a U.S. patent dispute related to drug Protonix.
Wyeth Pharmaceuticals, a unit of Pfizer
Sun Pharma said on Thursday it has sound reasons to disagree with the "overstated claims" of Wyeth. The drugmaker said it believed the patent is invalid and unenforceable and that it will pursue all available legal remedies including appeals.