Mumbai, Oct. 8 -- Indian benchmark indices opened on a subdued note on Thursday following the RBI's policy announcements, with the Sensex slipping over 300 points and the Nifty tumbling below the 22,550 level, as the central bank's shift towards tighter monetary policy weighed on investor sentiment.

Nifty opened with a marginal gap-down at 22,599.05 and was trading at around 22,487.05, down 116 points or 0.51 per cent against the previous close of 22,603.05 at the time of reporting. Sensex, on the other hand, opened at 72,668 and was trading at around 72,303.45, down 335.25 points or 0.46 per cent against the previous close of 72,638.70 at the same time.

All broad market indices traded in the red; among sectoral indices, Nifty IT emerge...