Student Concession from Indian Railway?

I am a student of Indraprastha University (IPU), Delhi, studying in JIMS. My friends and I are planning a trip to Goa. How can we get the 50% student concession offered by the Indian Railways.

Well every college has a application form for filling for students concession. It has to be submitted along with the booking slip. But i want to warn you that you only get students concession in 2nd class trains in only Sleeper Class. !st class trains are like Rajdhani Express, Shatabdi Express, Garib Rath, or any other special trains.
You have to get the concession form duly completed and signed by the College, get the same attested by the nearest railway station of your place and submit the same to the Railway Booking counter while booking the ticket. You can also get student concession from Indian Airlines by producing the concessional form issued by the college.