The Sensex is now almost flat at 12,172, down one point.ITC and Bharti Airtel have slipped 1.5% each to Rs 182 and Rs 467, respectively.ONGC is down 1% at Rs 1,157. HDFC has advanced 1% to Rs 1,405. Reliance, Satyam and HDFC Bank are the other notable gainers.Out of 2,452 stocks traded so far, 1,209 have advanced, 1,144 have declined and the rest are unchanged.