Geological structure of India
- Peninsular block, Himalaya and other extra-peninsular mountains, Indo-Ganga-Brahmaputra plain
- Archaean and dharwar
- Cuddapah and vindhyan
- Gondwana system: coal beds (Damodar, Son, Mahanadi, Godavari valleys); correlation with southern continents
- Deccan flood basalts and their geological setting
- Tertiary and quaternary
- Peninsular block features: residual ranges, shallow valleys, submerged west coast, stable shield