Shares in automobile companies rose on Wednesday on hopes of buoyant demand during the September-to-December festive season.
The BSE Auto Index rose 2.9 pct on Thursday, a day after domestic automakers reported record May sales.
The BSE Auto Index closed 1.3 points lower on Wednesday as investors across Asia remained cautious after the overnight slide on Wall Street.
The BSE auto index on Thursday continued its downward trend from the previous session, closing 4.43 percent down.
The BSE Sensex ended 2.6 percent up on Thursday on good corporate results and robust economic data.
The Sensex ended the week on a positive note, closing 1.7 percent higher, as increased investor confidence helped boost sentiment.
The BSE Sensex broke a two-day climb and fell marginally to 0.2 percent on Thursday as investors squared their position on the last day of expiry.