I am a class 11 student studying in India. I am smart at maths and computer science(c++) , good in physics but i hate chemistry.
In India all the entrance examinations(for engineering colleges) require learning of Chemistry.
Moreover these exams do not test on computer science.
So my chances of getting admission into an engineering college is quite less .
But i have full desire to pursue computer engineering.
I have also not joined any coaching institutions or tuition classes.
Kindly advice me anyone please.
This is a matter of serious consideration for me.

You've answered your own question. Join a coaching institution or tuition class.

Yes, exactly :)

But i do not want to join one!
I like to studyon my own

Unless you master the required subjects, either by self-study or though training you do not have much chance in becoming a prof developer.