Hello,

The Indian Space Research Organisation is the space agency of the Government of India.

• Candidates who want to join Indian space research organization as an engineer or scientists they must have completed their 12th in Science stream with maximum weightage and also appeared for the IIST exam.
• You must be graduated with an engineering degree from a well recognized university or institution.
• You must have passed with minimum 65 % marks in any of this bachelor degree including electrical, Electronics, computer science, Mechanical engineering.
• You have to pass the examinations conducted by ISRO. +3 for correct answer and -1 for wrong answer. In totality there will be 80 questions.
• BE/BTech or equivalent with a minimum aggregate of 65%.
• Age limit should be below 35 years

For joining you must have MSc or BTech.

https://www.isro.gov.in/careers

You can refer to this link for more information

Hope this helps!!