The exchange, earlier this week, said that DLF would move out from Group A to Group B category from next month.

In a revised circular issued yesterday, Bombay Stock Exchange or BSE said that DLF will remain in the list of Group 'A' companies.

Besides, the exchange announced that United Spirits, GATI and JK Tyre Industries would move to Group A from May 4.

Furthermore, Ranbaxy Laboratories and ING Vysya Bank would be moved out of the Group 'A' companies "because of corporate action (scheme of amalgamation) due to which, these scrips are not available for trading."

These changes will be effective from May 4 this year.

BSE has classified equity scripts into categories such as Group A, Group B, Group T, among others, to provide a guidance to the investors.

Group A is the most tracked segment consisting of about 300 scripts while Group B consists of more than 3,000 stocks.

The classification is based on several factors like, market capitalisation, trading volumes and numbers, track records, profits, dividends, shareholding patterns and some qualitative aspects.