Hello Bhavya, 

Aeronautical engineering is a very prosperous branch, full of opportunities with the good annual package. There are some good colleges in Indian where you can apply for M.tech in aeronautical engineering. Such as MIT Pune, VIT University, SRM University,  Manipal University. 

For detailed information about the college and the courses they provide are given in the following link. Please go through it. Try to read reviews of the students as it will help you to know more about the college education system and placements. 

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

To know more about opportunities you will have after having M.tech degree in aeronautical engineering, check the following link

https://collegedunia.com/courses/master-of-technology-mtech-aeronautical-engineering

Hope you find this information useful. Have a great future ahead.