At close, Sensex was up 592.93 points or 0.78% at 76,617.44, and the Nifty was up 166.65 points or 0.72% at 23,332.35.
At close, Sensex was down 1,390.41 points or 1.80% at 76,024.51, and the Nifty was down 353.65 points or 1.50% at 23,165.70.
The National Stock Exchange (NSE) has made changes to the lot size of derivatives contracts for Nifty Bank and Nifty Mid Select.
Foreign investors have infused nearly Rs 31,000 crore in the Indian equity markets in the last six trading sessions in March, data with the depositories said.
The benchmark indices ended lower on Friday, with auto and Information Technology stocks remaining under pressure amid concern over the upcoming US tariffs.
Among the sectors, barring Nifty PSU Bank, all sectoral indices ended higher.
Sensex closed up by 328.48 points or 0.45 per cent at 73104.61, while the Nifty surged by 118.55 points or 0.51 per cent to reach 22,217.85.
Nifty 50 opened 27 points lower at 22,027.95 compared to its previous close of 22,055.20 and extended losses to as much as 234 points, or over 1%, reaching the intraday low of 21,821.05.
Sensex and Nifty 50 rebounded into positive territory, with the Sensex closing 260 points, or 0.36%, higher at 72,664.47, and the Nifty 50 finishing 98 points, or 0.44%, up at 22,055.20.
Sensex was down 45 points or 0.1 per cent at 73,466.39, and the Nifty 50 was up 4.50 points at 22,307.
