ending the week at 19,270.06, disclosing a gain of 650.34 points or 3.49 per cent.
It has gained by 750.62 points or 4.05 per cent in two weeks.
The NSE 50-share Nifty also rose by 208.60 points or 3.81 per cent to 5,680.40.
The market maintained the firm trend even as government said growth in eight infrastructure industries was 3.1 per cent in July, against 4.5 per cent a year earlier. An indicator of manufacturing sector activity in India contracted in August.
The passage of the Pension Bill in the Lok Sabha raised hopes of more reforms, experts said.
21 scrips out of the 30-share Sensex ended higher while 9 others finished lower.
Major gainers were ICICI Bank (19.23 per cent), BHEL (19.20 per cent), ONGC (15.98 per cent), Coal India (10.76 per cent), SBI (7.85 per cent), Tata Steel (6.53 per cent), Tata Motors (6.39 per cent), HDFC (6.13 per cent), Jindal Steel (5.16 per cent), Bharti Airtel (5.02 per cent) and Cipla (4.95 per cent).