Hello,
ISRO is Indian Space Research Organisation, formed in 1969, superseded the erstwhile INCOSPAR. Vikram Sarabhai, having identified the role and importance of space technology in a Nation's development.
You choose pcm which is physics, chemistry and mathematics for your 12th class great. You have to options for joining ISRO.
Now choice us totally yours. When you have to go for ISRO. I'll suggest you that after completing graduation you can join ISRO. You have to give only one entrance examination then. After graduation you have a degree and more knowledge about your subject. And you can do well in ISRO.
All the best.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile