Subject(s): Evolution of the ECMI -- Tectonics of Offshore Basins -- Hazards Associated with the ECMI -- Passive (divergent) continental margins, active (convergent) continental margins, transform margins, characteristics of passive margins, exploration of passive margins, origin of Indian ocean and Bengal fan, evolution of eastern and western continental, margins of India, seismo- tectonics of Indian subcontinent, peninsular or stable continental; region seismicity, importance of studies of passive margins, eastern continental margin of India ECMI -- Evolution of ECMI : Qualitative analysis of geophysical maps, structural analysis of geophysical map, magnetic data, gravity data, structural lineaments over ECMI, two stage evolution of ECMI, link-up with groundwater break up, ambiguities in proposal theories on evolution -- Tectonics of offshore basins : Cauvery offshore basin, pre- Cambrian mega lineaments of Cauvery basin, Krishna- Godavari offshore basin, land ocean tectonic signatures of Krishna- Godavari basin, mahanadi offshore basin -- Hazards associated with ECMI : Puducherry shelf, Tamil Nadu coast, Mahabalipuram - palar shelf, Ongole shelf, Kakinada and Kalingapatnam shelf, seismic hazard over ECMI -- Evolution of ECMI, tectonic of offshore basins, seismic hazards over ECMI