New Delhi, Dec. 2 -- Indian equity benchmarks ended Monday's volatile session marginally lower, giving up strong morning gains that had propelled both Nifty 50 and Sensex to fresh all-time highs. Nifty 50 closed at 26,170.80, posting a modest decline of 32.15 points or -0.12%. Sensex settled at 85,533.70, down 172.97 points or -0.20%. The initial surge was driven by strong sentiment following better-than-expected Q2 GDP growth of 8.2% before profit booking at higher levels brought the indices down.

Market breadth was clearly negative, with the advance-decline ratio across the BSE 500 standing at roughly 0.68:1 (200 advances vs. 294 declines), indicating caution in the broader market, particularly in the mid- and large-cap segments.

On t...