Aircraft recognition is a learned art. It can only come from living close to a place where you see lot of aircrfat - but that still will not make one adept at instantly recognizing something he has never seen before. The skill is most often picked up by looking at images of dozens or hundreds of different type of aircraft and learning the fine points that differentiate the ones that look similar at first glance. For example - fast flying fighter aircraft nay be visible for less than a second in a gap between trees or a break in clouds and they should be recognizable in that split second. In Bangalore it is often difficult to differentiate between and LA and Mirage 2000 that are seen flashing past very high up for less than a second.
Aircraft recognition is taught to military personnel but is often a learned art for jingos and enthusiasts. I know that many on BRF are accomplished masters in this art and many are not. I myself became an expert at about age 10, but my skills are mainly for military aircraft. I am somewhat less adept at recognizing civil aircraft. My skills have waned somewhat but I am still good and try to keep myself updated. Nowadays there is much material online so we do not have to depend on what I did as a kid - "The Observer's Book of Aircraft" published every year. I collected nearly every one of them - sometimes buying up old issues when I got this and have books from 1959 to the 90s. I may have a few from the 21st century as well - but I can't remember - need to check. They are no longer published and the author died recently.
Some folks may want to try this quiz which I found online. I got 100% in my first attempt but my score (depends on timing) was just under 10,000 - which is an indicator of how quickly and accurately one can recognize shapes and associate them with a name. This is an essential skill for aircraft recognition and comes with practice. Some of the high scorers in that quiz have 19,000 points.
Here is the quizhttp://550cord.com/games/quiz.asp?aircraft
In this thread I will try and post images or silhouettes of common Indian aircraft first and then move on to other aircraft so that anyone who visit this thread can use it as reference material and for skill development.
For other who don't want a "mine is bigger quiz" - here is a nice little fighter aircraft recognition guide - 3.6 MBhttp://download.high-g.net/files/Handbo ... nition.pdf
Will post images especially silhouettes as I find them - starting from LCA/Jag etc. Others who find them please go ahead and post