The benchmark BSE Sensex gained over 85 points in early trade today after two sessions of losses on emergence of buying by funds and retail investors in select stocks. Besides, a firming trend in other Asian markets buoyed the trading sentiments here. The 30-share index, which had retreated from record highs by falling 145.03 points in the past two sessions, recovered by 85.68 points, or 0.30 per cent, to 28,118.53, with sectoral indices, led by healthcare, FMCG, IT and oil & gas, trading in positive zone with gains up to 0.45 per cent. Also, the National Stock Exchange index Nifty reclaimed the 8,400-mark by rising 27.80 points, or 0.33 per cent, to 8,410.10. Brokers said a better trend in other Asian markets and emergence of buying by funds and retail investors, though selective, influenced the sentiments here. Among other Asian markets, Hong Kong's Hang Seng was up 0.12 per cent while Japan's Nikkei rose 0.69 per cent in early trade today.