| Age | Unit | Lithology | Depositional Environment | Thickness (m) |
| Plio-Pleistocene | Unit-3 (Equivalent to Dupitila Formation) | Yellowish brown, very loosely compacted, medium to coarse grained, Ferruginous sandstone with minor shale | Fluvial environment | 1000+ |
| Pliocene | Unit-2 (Equivalent to Tipam Formation) | Yellowish brown, moderately compacted, medium to fine grained sandstone with interbedded shale | Flavio to Deltaic environment | 300 |
| Miocene | Unit-1 (Equivalent to Surma group) | Alternation of sandstone and shale, yellowish brown, moderately compacted, matured, medium to fine grained sandstone and bluish gray laminated shale. | Shallow marine to Deltaic environment | 1000+ |