Vijay Kumar Kapahi, Indian radioastronomer (Quetta, Punjab 21 January 1944 – Mumbai 16 March 1999)

Authored about 100 papers

Internationally acclaimed for his contributions in the field of extragalactic radio sources and cosmology

First showed that radio galaxies linear sizes were considerably smaller in earlier cosmic epochs (1975)

Identified a major class of radio sources, the compact steep-spectrum sources (1981)

Discovered the phenomenon of relativistic beaming in quasar nuclei 

With G. Swarup. A simple image forming technique suitable for multifrequency observations  of solar radio bursts. Solar Physics 14:404-13, 1970