Is it true that there is no proper scope for aeronautical engineering in India? Can I get job in the field of Aeronautical engineering especially in NASA or ISRO? What is procedure for the same? Also, suggest a good college for doing Aero Engineering

i m doing dilpoma in mechanical engineering....n after that i want to do aeronautical engineering....but many people said me that this enggineering has no job scope in india.......but still i want to do aernautical engineering should i do it or not.....n can i get job in this field.....in NASA or ISRO.....what will be the procedure to apply for the same.....pls suggest me the best...i m very tensed about my career.... n also suggest me a good clg........n if possible join me on facebook.....so that i could be in link with you........