Mumbai, Sept. 9 -- Indian stock markets opened higher on Tuesday, tracking positive global cues, with gains led by IT stocks.

The benchmark Sensex opens 342.39 points higher, or 0.42 per cent up, to 81,129.69, while the Nifty 50 advanced 90.95 points, or 0.37 per cent up, to 24,864.10 in early trade.

Ajay Bagga, Banking and Market Expert, told ANI, "Indian markets saw metals and auto leading while IT remained challenged in the wake of threats to outsourced contracts from US companies to Indian service providers. This morning Indian futures are positive, but with challenging valuations, and persistent FPI selling, Indian markets are finding it tough to break out from key resistance levels."

He also pointed out the global political devel...