 Meghnad Saha (1893-1956)Indian astrophysicist. Noted for his development in 1920 of the thermal ionization equation, which, in the form perfected by the British astrophysicist Edward A. Milne, has remained fundamental in all work on stellar atmospheres. This equation has been widely applied to the interpretation of stellar spectra, which are characteristic of the chemical composition of the light source. He was instrumental in the creation of the Calcutta Institute of Nuclear Physics, of which he became honorary director. The Institute is now called Saha Institute of Nuclear Physics.
He was elected as an independent member to the Parliament of India in 1952.
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