Chandrasekhara Venkata Raman was born in 1888 in a village in southern India. And died 21 November 1970

As a child, Raman was precocious, curious and highly intelligent. His father was a college lecturer in mathematics, physics and physical geography, so the young Raman had immediate access to a wealth of scientific volumes.
How did Raman prove scientifically that the sea is blue?
Observing water over three seas with a simple Nicol prism, Raman concluded that water molecules scatter light just like air molecules do. Light scattering in air was Rayleigh’s explanation for why the sky was blue; and Raman found that this was true also for why the sea was blue.9 Nov 2020
C.V. Raman was awarded the 1930 Nobel Prize in Physics for his discovery of the Raman effect, in which light that passes through a material is scattered and the wavelength of the scattered light is changed because it has caused an energy state transition in the material’s molecules.
CV Raman had won the Nobel Prize and Meghnad Saha, considered the father of nuclear science in India, was internationally lauded for his work on radiation in stars but none of them ever directly dealt with Einstein. A classmate of Saha however managed to reach out to Einstein with stupendous results.
The fingerprint region, typically between 300–1900 cm -1 in Raman spectroscopy, is often used for identification or authentication testing of raw materials, excipients, and active pharmaceutical ingredients (APIs) in drug products for quality control (QC) release testing