Hey ISRO does not open any recruitments on the basis of the 12th ,it only recruits on the basis of the graduation level and that too in the field of engineering


Branches considered in ISRO


Mechanical

Electrical

Computer Science

Electronics


So in my opinion you should first complete your engineering if you want to get into the ISRO


Basic eligibility

You should be engineer in any of the above field

You should have scored at least 65%

Your age should be above 18


If you want more feel free to contact again