Further, it has sought comments from the members of the investment community regarding the proposal till tomorrow.
"S&P Dow Jones Indices is conducting a consultation with members of the investment community on a potential methodology change to the S&P BSE Sensex, S&P BSE 200, and S&P BSE 500 indices regarding the treatment of multiple share classes for index inclusion," it said.
As per the proposed methodology, Differential Voting Right Shares (DVRs) would be eligible for index inclusion provided that the ordinary share class is part of the index and DVR shares outstanding are greater than 10 per cent of the ordinary shares outstanding.
In addition, the DVRs must individually satisfy all other eligibility criteria.
"DVRs satisfying the index eligibility criteria are aggregated with the company's common stock and index construction is done based on the aggregated company data," S&P Dow Jones Indices said.
"If the proposed change had been incorporated into the December 2016 rebalancing, there would have been an additional one-way turnover of approximately 0.4 per cent for the S&P BSE Sensex. For the S&P BSE 200 and S&P BSE 500, there would have been no impact," it added.
S&P Dow Jones Indices, a division of S&P Global, provides investable and benchmark indices to the financial markets.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)