How shall I prepare for IIT without joining any coaching institute? I am in class 11.

There are some strategies that are important for your JEE course.Basically coaching centre tries to let you adopt those thing.But ,not to worry,just think there are many students who still not qualify even if they ensured all the classes of coaching centre.The simple strategies are:

1.Get some MCQ books of Dinesh,TMcGH, books for each subject for each subject.

2.Try to read every single shortcut process of every numerical based chapters after readinhg your text book obviously.

3.Next,Solve the chapterwise and mock test .Also previous year questions.

4.Judge yourself withing time constraints and learn new things from the mcq test every single day and note it down in a single copy.Check this out every now n then.

5.Most imp thing is back calculation.That means suppose you set a target of 150 marks out of 360.That means out of 90 question 36-40 questions need to be correct.More criticisely, from each subject 12-14 questions out of 30(less than 50%).It is easy you know..dont fear about it..just go for it..i used to be guide of those students who r fearless and without any conventional coaching they cracked the exam.Guidence and Sincerity is imp. 

Coaching is the best tutor of every path in our life but if u can't afford for it then just focus on what u have because by study yourself you can achieve your dream, it's u the one who can lead and fullfil your dream by hard work n prepare all the class 11 and 12 books nicely then u will gain more strength and potential to crack JEE.

The preparation for IIT-JEE usually starts 2 years prior to the examination. So, for you, it is the right time to start with your JEE exam preparation. If you do not want to go to any coaching institute then you may join any online coaching or problem-solving classes or do self-study.

To start with, jot down the syllabus and exam pattern and get started with your NCERT books. These will prepare you simultaneously for entrance exams & boards. You may take reference from a few guidebooks in case you didn’t understand any particular concept.

Give mock tests; solve sample papers and previous years question papers. These will analyse your preparation and help you identify your weaker sections. Work in your weaker sections and revise regularly!