The BSE benchmark Sensex was trading 18 points in green at 18,643 a short while ago. Earlier the Sensex recovered by over 85 points to 18,710.50 in early trade today on buying by funds and retailers ahead of RBI policy review amid a mixed Asian trend. The 30-share barometer had lost 133 points in the previous session on Friday.The Nifty at the National Stock Exchange was up by 3 points to 5,667.