NHAI Plants 5.20 Lakh Saplings Across Odisha in Four Months; Arogya Van Initiative Promotes Medicinal Biodiversity - Press Information Bureau. NHAI Plants 5.20 Lakh Saplings Across Odisha in Four Months; Arogya Van Initiative Promotes Medicinal Biodiversity - Press Information Bureau - Official announcement released by Government of India via Press Information Bureau (PIB).