Domestic stock markets started Thursday's session on a negative note, with the BSE benchmark Sensex cracking over 800 points intraday trade as rupee hit another low amid weak global cues and fears of widening current account deficit (CAD). At 12:55 pm, the S&P BSE Sensex was trading 715.59 points, or 1.99 per cent, lower at 35,260.04 while the Nifty 50 was down 220.35 points or 2.03 per cent at 10,637.90. Fears over Reserve Bank of India (RBI) turning aggressive in its monetary policy stance due to a rise in inflationary pressure also led to erosion in investors' risk-taking appetite, analysts said.