See there are no such Space Mission Specialization offered by any institute in India. The specialization in Aerospace Engineering which are offered are enlisted below:

• AERODYNAMICS
• THERMODYNAMICS
• CONTROL SYSTEM
• PROPULSION
• CELESTIAL MECHANICS
• ELECTRONICS

For more information regarding BTech in Aerospace Engineering consider the link below:

https://www.careers360.com/courses/b-tech-in-aerospace-engineering

I hope this helps. Wish you a great eve!