Dear Amit,

There are different recruitment channels. Candidates can be recruited by direct Entry through Scientist Entry Test (SET), Campus selection, centralised recruitment, etc. Also, candidates are recruited for various posts. Eligibility criteria is also different for every post.

I would suggest you to refer the link below for detailed information-

 https://engineering.careers360.com/articles/isro-drdo-barc-dae-how-work-here

Good Luck!

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