Hello,
If you want to pursue an aerospace dual degree program in IITs, generally you need to get ranks in the range of 5000 to 10,000. But, if you want to go to older IITs, you need a rank in the range of 2,300 to 4,500. Also, you should check the official JoSAA website to check the specific cutoff.
I hope it will clear your query!!
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