| Central Plateau and Hills |
| Eastern Coastal Plains and Hills |
| Eastern Himalayan Region |
| Eastern Plateau and Hills |
| Gujarat Plains and Hills |
| Island Region |
| Lower Gangetic Plain Region |
| Middle Gangetic Plains Region |
| Southern Plateau and Hills |
| Trans-Ganga Plains Region |
| Upper Gangetic Plain Region |
| Western Coastal Plains and Ghats |
| Western Dry Region |
| Western Himalayan Region |
| Western Plateau and Hills |
| <all other values> |