The index represents 50 companies selected from the universe of NIFTY 100 based on free-float market capitalisation and liquid companies having average impact cost of 0.50% or less for 90% of the observations for a basket size of Rs.10Crores. The constituents should have derivative contracts available on NSE. The Nifty 50 broad based indices are reviewed twice every year based on six month data ending January 31 and July 31. Eligibility criteria for newly listed security are checked based on the data for a three month period instead of a six month period. At the time of index reconstitution, a company which has undergone a scheme of arrangement...