Hello aspirant,

Yes automobile engineers can work in aerospace company and marine company it depends upon the basic understanding of the subject and if you can clear the exams and interviews to work for this companies, automobile engineers have a bright future in India as their will be an increase in automobile productions but also their will always need of good engineers in aerospace and marine company aswell.

To enhance one's selection in such companies it is suggested that he or she should do some projects or research in the field this company works, it will really help in understanding better.

I hope this helps