| Selected State-wise Inventory of Geological Reserves of Coal in India (2000 to 2020) | ||||||
| (In Million Tonne) | ||||||
| States | As on | Proved | Indicated | Inferred (Exploration) | Inferred | Total |
| Andhra Pradesh (Gondawana) | ||||||
| Arunachal Pradesh (Tertiary) | ||||||
| Assam (Tertiary) | ||||||
| Assam (Gondawana) | ||||||
| Jharkhand and Bihar (Gondawana) | ||||||
| Bihar (Gondawana) | ||||||
| Madhya Pradesh and Chhatisgarh (Gondawana) | ||||||
| Madhya Pradesh (Gondawana) | ||||||
| Chhattisgarh (Gondawana) | ||||||
| Maharashtra (Gondawana) | ||||||
| Meghalaya (Tertiary) | ||||||
| Nagaland (Tertiary) | ||||||
| Odisha (Gondawana) | ||||||
| Sikkim (Gondawana) | ||||||
| Telangana (Gondawana) | ||||||
| Uttar Pradesh (Gondawana) | ||||||
| West Bengal (Gondawana) | ||||||
| Tertiary Coalfields | ||||||
| India | ||||||
