Mumbai, Feb 8 (IANS) The 30-scrip Sensitive Index (Sensex) on Friday opened on a negative note during the morning session of the trade.The Sensex of the BSE opened at 36,873.59 points and touched a high of 36,885.56. The Sensex touched a low of 36,767.26 points.On Thursday, the Sensex closed at 36,971.09 points.The Sensex is trading at 36,800.47 down by 170.62 points or 0.46 per cent.On the other hand, the broader 50-scrip Nifty at National Stock Exchange (NSE) opened at 11,023.50 points after closing at 11,069.40 points.The Nifty is trading at 11,027.15 points in the morning. --IANS vj/ksk