Although I am not a pilot, I know a couple and they are heavily schooled in math. Calculating fuel, distances, vectors, etc. would be a definite must for a pilot.

There is a major called avionics

Major is what interests you- keeping in mind that if you ever experience a furlough during your career- it may be a good idea to have a major OTHER than aviation. Many, many pilots major in aviation science as that is their passion, but it is also a degree program with a very narrow marketability. The major airlines prefer, if not require, a 4 year degree just to apply. The subject does not matter. They simply want to see that you had the discipline to study and complete a degree. So, take what you will get good grades in and that you may be able to use in the future if need be. In addition to the possibility of a furlough, you must also consider what you might do if you ever lost your medical certificate. Without that, you cannot fly as a pilot and will be looking for a new career. Another reason to consider a non-aviation degree program. Read this page from Jetcareers.com about the subject of "College Degrees"- http://www.jetcareers.com/content/view/22/44/ BTW- Many people will say math & science are musts for pilots. Not so much anymore (in the USA anyway). Almost all the calculations these days are done by computers. You will only need a basic grasp simple algebra for the most complicated calculations you will do on the job such as time/speed/distance probelms figured in your head with rounded figures.

I have always thought why they dont have authorized Pilot Training Colleges, Air Crew training academies in Tamilnadu so students can be hired fresh out of studies?

In South Africa(Where most would like to do their pilot courses because of good weather),schools consider English language mainly and a BASIC understanding of maths.No academics necessary although whatever you have achieved academically will be shown on your certificate i think.That makes sense since not all that have good academic results can perform a good job or give best results at work.Passion overules!

Anything that would give you a good second career when you get furloughed or your airline closes. Whatever you do, DO NOT major in aviation science!