While Vedanta Aluminium, Balco and Cairn India confirmed the job cuts, sources said Sesa Goa too had slashed jobs.
Markets extended gains for the fourth consecutive day tracking gains in banks, capital goods and oil and gas majors.
Profit booking in realty, oil and gas, capital goods, power and metal stocks pulled the index down to the day's low of 25,347.33 points.
The 30-share Sensex gained 117 points to end above 29,000 at 29,006 while the 50-share Nifty gained 32 points to close at 8,761.
ITC, Sun Pharma, HDFC and Coal India were among the top gainers.
Stock market investors on Friday became richer by over Rs 1 lakh crore as the share market rose and the benchmark Sensex galloped to a new closing high enthused by the clear win of Narendra Modi-led BJP in Lok Sabha polls.
In the December quarter, Sensex earnings had contracted 5 per cent.
Oil and gas sectot may not put up good numbers in Q4.
Metal sector is not too happy from Budget announcements for the sector
Over the past week, the Sensex and the Nifty continued the bull-run
The 30-share Sensex provisionally ended up 46 points to end at 28,122 and the 50-share Nifty gained 20 points to close at 8,514.
The 30-share Sensex provisionally ended up 112 points at 28,555 and the 50-share Nifty closed 24 points higher at 8,561 after hitting a record high of 8,626.95.
Tata Steel, SBI, Infosys and L&T were among the top gainers for the day.
Tata Steel's domestic operations have been its cash cow.
The 30-share Sensex ended down 66 points at 28,438 and the Nifty ended down 15 points at 8,633.
The record breaking spree was led by index heavyweights, financials and metal stocks.
The Sensex ended higher by 245 points at 27,372 mark and the Nifty gained 66 points at 8,225.
The fall in metal and mining stocks comes on the back of weak Chinese trade data
The Sensex ended up 48 points at 28,386 and the Nifty gained 13 points to close at 8,476.
In the broader markets, the mid and smallcap indices were up 0.3% each, underperforming the BSE benchmark index which gained 0.5%.
From Rafale relief to heat on realtors, 10 landmark Supreme Court judgments in 2018.
The 30-share Sensex ended up 214 points at 27,890 and the 50-share Nifty closed up 52 points at 8,430.
The 30-share Sensex ended down 208 points at 28,261 and the 50-share Nifty closed 64 points lower at 8,571.
The BSE Midcap and Smallcap indices have performed better than the front-liners
The 30-share Sensex ended down 32 points at 28,851 and the 50-share Nifty closed 12 points lower at 8,712.
The 30-share Sensex ended up 8 points at 27,508 and the 50-share Nifty closed 1 point higher at 8,284.
The 30-share Sensex ended down 538 points at 26,781 and 50-share Nifty ended down 152 points at 8,067.
The Sensex ended down 251 points at 27,351 and the Nifty shed 65 points to close at 8,228.
Infosys, TCS, ICICI Bank and Sun Pharma among the top losers of the hour.
This makes him corporate India's biggest donor to society.
S&P upgraded India's credit outlook to 'stable' from 'negative' earlier.
Nifty September F&O series ended lower after seven consecutive positive series with Metal Index falling the most
HDFC, TCS, RIL, ITC and ICICI Bank dragged the Sensex by over 100 points.
The top gainers on the Sensex were Cipla, Bharti Airtel, Maruti Suzuki, Hero Moto & Sesa Sterlite.
The 30-share Sensex ended down by 59 points at 27,027 and the 50-share Nifty slipped 7 points at 8,087.
Sensex ended up 190 points at 25,519 and Nifty climbed 57 points to end at 7,626.
However, IT stocks fell on weak growth forecast by Gartner
More than half the Sensex companies have declared their results for the third quarter and there are more positive surprises than disappointments.
The 30-share Sensex ended down 224 points at 28,442 and the 50-share Nifty ended down 101 points at 8,606.
The 30-share Sensex ended down 245 points at 28,799 and the 50-share Nifty closed down 81 points at 8,750