Solution:

• The Indian Space Research Organization , abbreviated as ISRO, was established on 15 August 1969 as the National Space Research Organization of India.
• The first Chairman of ISRO – Dr. Vikram Sarabhai
• ISRO’s 100th mission, PSLV-C21, was successfully launched from the Satish Dhawan Space Center, Sriharikota on September 9, 2012 at 9:51 am.
• In addition to local needs, the company also provides international rocket launch services.
• S. Somanath is the current (2023) Chairman of ISRO.