During the last two decades, seven devastating earthquakes, chronologically, the 1991 Uttarkashi earthquake (mb 6.6) in the western Himalaya, the1993 Killari (mb 6.3) and the 1997 Jabalpur earthquakes (mb 6.0) in the central part of peninsular India shield area, the 1999 Chamoli earthquake(mb 6.3) again in the western Himalaya, the 2001 Bhuj earthquake (Mw 7.7) in the western part of peninsular shield area, the 2004 Sumatra-Andaman mega thrust tsunami earthquake (Mw 9.3) in the Andaman-Sunda arc and the 2005 Kashmir earthquake (Mw 7.8) in the western Himalayasyntaxis zone, caused severe damages and large casualties in various parts of India. The 1993 Killari, 1997 Jabalpur and the 2001 Bhuj earthquakesare the Stable Continental Region (SCR) earthquakes in peninsular India, the 1991 Uttarkashi, the 1999 Chamoli and the 2005 Kashmir earthquakesare the Himalayan collision zoneearthquakes, and the 2004 Sumatra-Andaman earthquake is one of the four mega thrust earthquakes of the worldin the Andaman-Sumatra subduction zone. All these earthquake sequences were well studied by various national and international organizations;the aftershocks were recorded making temporary seismic networks. These investigations have been very useful to understand seismotectonics of theSCR events and the collision zone and subduction zone events of the Indian subcontinent.