The stock gained 4.46 per cent to Rs 2,410.55 on BSE.
At NSE, shares of the company jumped 4.67 per cent to Rs 2,412.40.
The stock was the top gainer on both the key indices during the morning trade.
"With regard to the audit of the company's formulation Srikakulam Plant (SEZ) Unit I, Andhra Pradesh...the company has received an EIR from the USFDA, for the above-referred facility," Dr Reddy's said in a regulatory filing.
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