hello aspirant,

as you mentioned you have interest in space you can take two paths. you can give jee main and jee advance to get into the best engineering institute in india and can get admission in aerospace engineering where you will come to know about  lots of things related with space technology. see aerospace engineering is a professional degree. and you can also go for bsc in physics from a government college and can do masters in astrophysics where you can learn a lot of things related with space particles. and can do a lot of research about it.