PSU MantraNALCO bagged the prestigious Dun & Bradstreet Award-2023 for Business Excellence by NewsmantraOctober 9, 2023 Share1 NALCO bagged the prestigious Dun & Bradstreet Award-2023 for Business Excellence in the non-ferrous metals sector. The Award was received by CMD,NALCO, Shri Sridhar Patra, at an awards ceremony held at New Delhi