Renowned mathematician Vashishtha Narayan Singh passed away. He was born in 1942 in Basantpur village of the Bhojpur district in Bihar, Narayan Singh was said to have challenged Einstein’s theory of relativity. He completed his PhD on cycle vector space theory in 1969 and served as a professor at the Indian Institute of Technology, Kanpur(IITK) and the Indian Statistical Institute(ISI), Kolkata. He was also a visiting professor at Bhupendra Narayan Mandal University, Madhepura, Bihar.
Source: The Business Standard