Temporal pattern of global seismicity indicates temporal clustering of large earthquakes (Mw≥8.2) followed by relative quiescence (stress shadow). It is a characteristic seismic pattern along the plate boundaries. Clustering of the largest earthquakes during 1950s to 1960s followed by the extended period of low-moment release until 2003 and then again heightened moment release since 2004 has been observed, which represents a seismic temporal pattern of 50 years period.

Tank rehabilitation presently in vogue, in many states of India and neighbouring Sri Lanka, needs a holistic approach involving scientific planning and execution and people`s participation to save the tank and meet basic objective of providing water for irrigation. The article brings into focus the essential inputs to make the initiative successful. The main inputs include specialists’ reports on successful and failed initiatives in Karnataka, Tamilnadu, Pondicherry states and Sri Lanka.

Upper-air radiosonde observations, taken during “Cloud Aerosol Interaction and Precipitation Enhancement EXperiment” (CAIPEEX) at Mahabubnagar (16.73°N, 77.98°E) under Integrated Ground Observation Campaign (IGOC) during the second half of southwest monsoon of 2011 have been analysed. Various weather data taken from India Meteorological Department as well as NCEP/NCAR reanalyzed upper-air wind data for the months August and September of 2011 have also been used in the study. Intra-seasonal variation of monsoon, during the period of experiment, has been studied.

Groundwater in the carbonate aquifers of the southern Andhra Pradesh, India has approached to stress level as water table has declined due to increasing groundwater draft, low to moderate rainfall, less availability or absence of surface water sources and semi-arid climate. In Kallugotla watershed of Kurnool district, groundwater is overexploited for irrigation and static water level exhibit declining trend. In order to manage the aquifers for sustainable water supply, understanding and accurate assessment of groundwater recharge is necessary.

Deep and large opencast coal mines of 400m to 450m depth are considered important to increase the coal production of India. Planning and managing such large open pits depends upon a thorough understanding of geological and geotechnical aspects of the rock strata comprising the overburden column. The experiences of Singareni Collieries Company Limited (SCCL) located in Telangana, India document borehole geophysical logging as an effective means to generate a continuous description of geological and geotechnical strata features from the surface to total drilled depth.