The BSE Sensex might regain once again at its 18,000 stage since the two and a half years, however many of its gears have whichever have been left back whilst few have been missing out in general.

On Thursday, the yardstick clogged at 18,113, its biggest close up since February 15, 2008, when it was swinging at a 18,115 level.

Starting from February 15, 2008 and July 22, 2010, there have been five new entries in to the club of thirty, starting with the list of biggies like Hero Honda, Tata Power, Sterlite Industries, JP Associates and Jindal Steel.

They have restored Bajaj Holdings, Grasim, Ranbaxy, Ambuja Cements, and Satyam Computers.

An investigation of the input crafted by the stocks to the association in the Sensex, during this period, depicting that Reliance Industries, with approximately a 13.5% weightage, adding to a pessimistic 442 points, with its share price corroded by 18%.