Hello student,
If you have a strong passion in Aerospace Engineering, you must surely follow that field. However, I would like to say that if you take aerospace now, there would be no turning back as it is a specialization field. Another alternative for you to reach aerospace industry is by doing B.Tech in Mechanical Engineering and the Masters in Aerospace Engineering as it would then be safe for you as later if you want you can change your specialization stream. Also, an aerospace engineer from Top IIT's surely get lavishly paid and has immense respect in the industry.
I hope this helps, All the Best!
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