Hello Aspirant,

Yes, you can study Aeronautical engineering and pursue your career in it.For that you need to do your post graduation or master degree after your graduation in mechanical engineering.One of the opportunity to pursue your masters is by giving GATE exam and getting a very good rank and get a seat in prestigious IITs or you may study in Universities too.You need to pass in your graduation with good percentage.And eligibility criteria varies from one entrance exam to another and from one University to another.You must know the eligibility criteria first.

I hope this is helpful.