Domestic stock markets started Tuesday's session on a mixed note, see-sawing between gains and losses ahead of release of key macroeconomic data. The 30-scrip benchmark index, Sensex, moved in a range of 36,465-36,331 in early trade, while the Nifty moved between 10,910 and 10,870. Weakness in IT stocks offset the advances in energy stocks. At 9:54 am, the Sensex traded 68 points lower at 36,326, and the Nifty was at 10,876, down 12 points from the previous close.