HYDERABAD (Reuters) - Indian drugmaker Sun Pharmaceutical Industries posted fourth-quarter profit above estimates on Wednesday, helped by strong performance in its key U.S. and domestic markets.

The company's net profit stood at 26.55 billion rupees ($318.9 million) for the three months ended March 31, against analysts' average estimate of 23.68 billion rupees, according to LSEG data.

($1 = 83.2688 Indian rupees)

(Reporting by Rishika Sadam; Editing by Varun H K)