Sensex ends 133.06 points down at 28,717.91; Nifty falls.
The BSE Sensex fell on Friday, marking its biggest weekly loss in eight, as blue-chips such as Tata Motors slumped on weak earnings and on worries the Modi-led Bharatiya Janata Party may face defeat in the upcoming Delhi state elections.
The broader Nifty fell 0.58 pe rcent for the day, dropping 1.67 per cent for the week, while the benchmark BSE Sensex lost 0.46 per cent to mark a weekly fall of 1.6 per cent.
The indexes extended their losing streak for a sixth consecutive session to mark their biggest weekly loss since Dec. 12, 2014.