Hey,
Of course you need to take Science that is Physics,Chemistry and Mathematics as compulsory subjects in order to be Aeranautical Engineer or any Engineer for that matter.
Arts and Commerce won't make you Engineer or Doctor.
BE in Aeranautical Engineering is a four year undergraduate course with specialisation in the field of aviation and aerodynamics. The minimum eligibility criteria is having 60 percent to 70 percent at 10+2 or equivalent level.
Admission is based on both merit and common entrance test.
For more information follow the link given below:
https://www.careers360.com/aeronautical-engineering-course
Hope this helps.
Good luck.

Hii ,

Aeronautical Engineering is one of the Branch of Engineering very few people opt for it.But there are ample opportunities for students in this stream.If you can do Aeronautical Engineering from a Good IIT, you will have awonderful opportunities.The Basic eligibility criteria is one should have completed 12th with minimum 50% from science stream.

Thank you.