The Indian benchmark indices opened marginally low on Friday amid weak global cues, as selling was seen in the IT, PSU Bank and pharma sectors in the early trade. At around 9.30 am, Sensex was trading 106.98 points or 0.14 per cent down at 74,233.11 while the Nifty declined 16.25 points or 0.07 per cent at 22,528.45.