Psychology

A Ph.D. in counseling psychology typically takes four years of full-time study to complete or more for part-time students. You must have Master's degree with 50% aggregate marks in Science for apply and Admission to the course is done on the basis of entrance examination or merit list. Some such exams held in the country are RAT (Research Aptitude Test) and JRF (Junior Research Fellowship). So go through those distance learning sites from you want to do. Counseling Ph.D. students may also be interested in the clinical supervision, counselor education, or research-related job opportunities open to those with a doctoral degree. Ph.D. degrees obtained through distance mode will no more be recognised after the University Grants Commission (UGC) so before apply from distance learning think in that way also.

Hello Vaskar Das, it's very nice to hear from you that your dream is to work at NASA. Like our own ISRO, NASA too requires specialists in different streams like mathematics, physics, mechanical engineering, medicine, metallurgy, etc. So frankly speaking you don't have to be an aeronautical engineer from IIT Mumbai to get a job in NASA. Don't feel pity for yourself for being physically challenged. There is a large number of such people who have achieved greatness in this world by sheer dint of hard work and determination. Of course, being a Govt institute, IIT Mumbai also reserves seats for physically challenged students and offers all help for them to be comfortable on their campus.
Best wishes to you.