IIT takes only very intelligent People ?

 This is a myth.

The IIT JEE (the exam to get into an IIT) tests for 4 things broadly, and in order of importance they are:

1. Hard Work
2. Dealing with Stress and Rigour
3. Numeric Aptitude
4. Scientific Aptitude

1 and 2 are more emotional parameters (or emotional intelligence) and do not indicate IQ, which is the widely assumed definition of intelligence (I will use intelligence to refer to IQ henceforth). 3 and 4 only contribute to IQ.

As a result, you cannot clear the JEE without the first two. You can clear the JEE with an average amount of the last two - while having 3 and 4 only are not enough to clear the JEE. Therefore you have a combination of something that is not intelligence and something that is partially intelligence to get into IIT.

Due to the hype of the JEE and the lopsided focus on just these 4 things, parents and students begin to believe that the JEE is an end all and will assure lifelong success. There are multiple other parameters like people skills, communication, leadership etc. that are needed to succeed and the JEE just tests a few. This usually results in unfair self expectation and an unreasonable assessment of self.

Overall, someone who has cleared the JEE is usually very hard working, composed and reasonably intelligent.

-Aviral Bhatnagar

Clearing JEE is the one and only path to success ?

Average Student ?