Hello Deepak Yadav,

They can't be compared.

Automobile and aeronautical can be related to with two subjects in detail which would be Aerodynamics and propulsion.

Well you have to figure out which engineering calls out for you more. If you're interested in automobile designing, modelling and you interest in High speed racing car models, well you could go for automobile engineering.

If you call out for the design, mechanics and principles of how and what of an aircraft, then aeronautical is your choice.

Well, for sure, both of these are extremely popular and difficult fields of study. And yes, few people opt for them owing to the level of difficulty.

Thanku.