The BSE Sensex rallied over 128 points to 35,447.43 in early session today, maintaining its positive form for the fourth straight day on positive cues from global markets.Unabated buying by domestic institutional investors fuelled the uptrend, brokers said.
The 30-share Sensex, which gained 403.97 points in the previous three sessions, added 128.08 points, or 0.36 per cent, at 35,447.43.