Hello student

There is no good or bad things in BTech of IIST that Indian institute of science and technology. It depends upon the candidates of students performance in the course of study . Vijay ki ECE has also vast scope in future job prospect because the course of study of ECE is a vast process which teaches and learns a candidate a wide range of electronics and communication engineering which has the great scope of practical implication in electronics and communication world.

On the other hand BTech in aerospace is also a good course which head  enlearns a student to built himself or herself  create skill for using in the sphere of future job prospect.

So you have to choice one of the courses from these two  in which you will feel easy to go ahead with the course of study and fulfilling your aim.