Why is market rising today? Sensex jumps 800 points, Nifty above 23,050. Key factors behind D-Street rebound

Infosys, UltraTech Cement, TCS, HCLTech, Reliance Industries, Tech Mahindra and Bharti Airtel shares gained 2-3% to lead gains on Sensex. Bucking the trend, Bajaj Finance shares dropped more than 2% to lead losses on the benchmark index.