The now-defunct magazine Flight now has most of its old issues (from 1909 to 2005) archived as pdf in this website:
You can find some interesting articles pertaining to Indian aviation here. The only irritant is that each page is stored as a separate pdf file.
For instance, here is a 6-page illustrated article from early 1962 on the Indian Airlines Corporation as it was then. It is particularly interesting to see a map showing all the routes being flown then and the average number of passengers daily. Even the famous Agartala/Khowai/Kamalpur/Kailashahr flight is there on the map and gets due mention.
This should be of interest to anyone interested in the history of civil aviation in India.
Please read the following pages in order: