From March 1969 to September 1971 worked in Over seas communications service (present Videsh Sanchar nigam) From October 1971 to May 1974 worked in Devence ionospheric research station, DRDO unit at Jammu Kashmir.  From June 1974 to 30th September 2005 worked in Devence electronics research laboratory, Hyderabad in various capacities and retired as Scientist.
For a brief period from January 1987 to June 1988 served in Geological Survey of India as GEophysicist Senior (Instrumentation).  From 1993 till retirement he was heading instrumentaions divisions of DLRL. Seven of international repute, in ideas for design columns.
After retirement started an R&D centre for hotovoltaic systems. Successfully completed PV based projects like 0.5 HP DC motor driven water pumping system for shallo bore wells, 1 HP AC submerisible water Pumbping system for deep bore wells, PV powered domestic lighting system.  All these projects are kept for demonstration.  These projects with expenditure breakup are given in the text of this book. 

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