Q4 results today: ONGC, Indigo, Mankind Pharma, NALCO, Colgate, Oil India, IndusInd Bank earnings on May 21

Q4 results on May 21: ONGC, Indigo, Colgate, Oil India, IndusInd Bank, NTPC Green Energy, Power Finance Corporation, and Rail Vikas Nigam among 133 companies to release their earnings report today.

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