Stock market today, Sept. 9 -- Indian stock markets started on a positive note on Tuesday, supported by strong global cues, with IT stocks driving the gains.

The benchmark Sensex rose 342.39 points, or 0.42 per cent, to 81,129.69 at the open, while the Nifty 50 climbed 90.95 points, or 0.37 per cent, to 24,864.10 in early trade.

Broader market indices on the NSE witnessed positive momentum, with the Nifty Midcap 100 rising 0.28 per cent and the Nifty Smallcap 100 advancing 0.32 per cent. The Nifty 100 index also climbed 0.3 per cent in the opening session, indicating an overall upbeat sentiment in the market.

"Nifty started the week on a muted note; however, sustained buying on the back of GST reform 2.0 drove the index higher, closing...