He was the Chairman of the CIAA .
In spite of non-cooperative health and recurrent problems with his pace maker , Rana has left his mark in many branches of Astrophysics and in Amateur Astronomy in India .
Rana was the Rana of the CIAA .
In spite of non-cooperative health and recurrent problems with his pace maker , Rana has left his mark in many branches of Astrophysics and in Amateur Astronomy in India .