The BSE Sensex was trading 344 points or 0.48% higher at 72,065. Nifty50 was trading at 21,742, up 95 points or 0.44% at around 9.19 am.
The Department of Labor's consumer price index (CPI), a key measure of inflation was up 3.4% from a year ago and higher than November's figure.
From the Sensex pack, Infosys and TCS were the top gainers, rising 5% and 2.9%, respectively.
Wipro, Tech Mahindra, HCL Tech and UltraTech Cement also opened 2-3% higher. On the other hand, M&M, Asian Paints, Bharti Airtel, HUL, and Power Grid opened lower.
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