On 75th Anniversary of Khanij Divas, Hindustan Zinc’s four mines – Zawar Group of Mines, Rajpur Dariba Mine, Kayad Mine and Sindesar Khurd Mine received the prestigious 5 Star Rating Mines award by the Ministry of Mines, Government of India. Mr Pralhad Joshi Union Minister of Parliamentary Affairs, Coal and Mines, awarded Hindustan Zinc at the 17th National Conclave on Mines and Minerals at the National Fire Centre, Nagpur.