Hello

Aerospace Structure:  After your b-tech you can go for masters in Aeronautical related branches such as aerodynamics, flight dynamics or power plant

Eligibility : Bachelor's Degree in Mechanical Engineering/ Civil Engineering with valid GATE scores in ME/CE.

Hope this Helps

All the best

hello aspirant,

now, since you have completed your btech in mechanical engineering branch.You can now do Mtech courses in aeronautical engineering.All you have to do is appear for Gate exam, get good marks and get in a good college.youneed to score 70+ to get tier 1 institute for m.tech courses.

you can refer to the following link to see colleges for your choice for mtech in aeronautical engineering.

https://engineering.careers360.com/colleges/list-of-me-mtech-in-aeronautical-engineering-colleges-in-india

Hope that helps

All the best