for b. tech admissions in IIT INDORE it is mandatory for you to give jee advanced exam and your admission will be based as per the crl obtained by you in the exam. feel free to ask any doubts in the comments section. admission into other courses like m. tech and phd is possible without jee advanced.
The answer is no there are 23 IIT in India starting from the old IIT Madras to the new IIT Hyderabad these IIT provide admission to the students by considering the all India rank secure in JEE advanced through Joosa counselling.
There are two levels of jee examination the first level is JEE mains which you can attempt to 2 times in a year.
After announcement of the all India rank of JEE main 1st 250000 students are qualified for the second level of exam JEE advanced
You can can get admission in NIT, IIIT through JEE mains but admission in IIT are only through JEE advanced
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