One of the most advanced branches in engineering, aerospace engineering encompasses the fields of aeronautical and aerospace (spacecraft) engineering. You would study topics such as fluid mechanics, heat transfer, applied aerodynamics, analytical mechanics, flight vehicle design, trajectory dynamics, and aerospace propulsion systems.
Aerospace engineers, popularly called “rocket scientists” develop hi-tech aeroplanes that weigh over a half a million pounds, to spacecraft that travel at the speed of 17,000 miles an hour.
They design, develop and test aircraft, spacecraft, and missiles and supervise their manufacture.
Aerospace engineers who work with aircraft are considered aeronautical engineers, and those working specifically with spacecraft are called aerospace engineers.
Besides the IITs – Kanpur, Mumbai Madras and Kharagpur which offer BTech as well as Integrated MTech in Aerospace Engg (5-years) at the undergraduate level, Amity University, Amity School of Engineering, Noida (www.amity.edu) and SRM University, Chennai (www.srmuniv.ac.in) also offer Aerospace Engg . Check out Engineering Entrance Exams
Alternatively, you could do a BTech (Aeronautical Engg) which is offered at several engineering colleges.