Equity benchmark indices continued their upward journey on Jan 04 with the Sensex testing 48,000 mark amid positive development on the vaccination front. Investor sentiment was lifted after the Drug Controller General of India approved Covid vaccines Covishield and Covaxin for emergency use in the country. At the closing bell, the BSE S-P Sensex was up by 308 points or 0.64 per cent at 48,177 while the Nifty 50 edged higher by 114 points or 0.82 per cent to 14,133. All sectoral indices at the National Stock Exchange were in the green zone with Nifty metal jumping by 5.3 per cent, IT by 2.7 per cent, auto by 1.6 per cent and PSU bank by 1.1 per cent. Metal stocks were stars of the day with Tata Steel gaining by 8.3 per cent to Rs 696.90 per share while Hindalco and JSW Steel up by 7 per cent and 3.5 per cent respectively.