The National Highways Authority of India (NHAI), on Thursday, said it raised the highest ever monetization value of Rs 15,624.9 crore through InvIT mode and the value is expected to be realised in March 2024. This is spread across Assam, Karnataka, Madhya Pradesh, Uttar Pradesh and West Bengal. The monetized value is expected to be realized in March 2024, the ministry of road transport and highways said on Tuesday.