NSE launches indices to track performance of Tata, Aditya Birla and Mahindra
Nifty Tata Group consists of 25 cos with a m-cap of Rs 7.5L cr, while Nifty AB Group Index consists of 8 cos with a m-cap of Rs 2.08L cr.

The past one year’s performance of these indices shows that the Birla group index is just about positive, while Mahindra and Tata group indices have declined over 4% and 7%, respectively during the same period.
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