Chintamani Nagesa Ramachandra Rao, also known as C.N.R. Rao (Kannada: (Citāmai Nāgēśa Rāmachandra Rāo)) (born June 30, 1934, Bangalore, India) is an Indian chemist who has worked mainly in solid-state and structural chemistry. Chintamani Nagesa Ramachandra Rao, also known as C.N.R. Rao (Kannada(Citāmai Nāgēśa Rāmacadra Rāva)) (born June 30, 1934, Bangalore, India) is an Indian chemist who has worked mainly in solid-state and structural chemistry.