Hello Aspirant
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You should be completed intermediate / puc. If you want government Colleges you should write jEE mains and advance.
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If you want more information about Aeronautical engineering once go through the below link:
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https://www.careers360.com/aeronautical-engineering-course
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Colleges offering aeronautical engineering is:
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Dayanand Sagar college of engineering, Manipal institute of technology Manipal.
Once go through the below link to know which College is offering Aeronautical engineering:
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Https://engineering.careers360.com/colleges/list-of-aeronautical-engineering-colleges-in-india
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If you have any questions further let me know.
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Thank you!!!!