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Prahalad Chunnilal Vaidya ( P.C. Vaidya ; May 23 , 1918 – March 12 , 2010 ) , was an India n physicist and mathematician , renowned for his instrumental work in general theory of relativity .
 Prahalad Chunnilal Vaidya, Vaidya, India
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Answer:
 Prahalad Chunnilal Vaidya, Vaidya, India