IT stocks came under sharp selling pressure on Tuesday morning, with the Nifty IT index falling over 2 percent to hover near a three-year low, as heavyweights across the sector dominated the Nifty top losers list. Benchmark indices were swinging between mild gains and losses in the morning trade. At 09:33 am, the Sensex was down 93 points or 0.1 percent at 75,410, while the Nifty slipped 32 points to 23,377. Market breadth remained positive, with 1,632 shares advancing against 1,363 declines.