Q. Consider the following :
  1. Aarogya Setu
  2. CoWIN
  3. DigiLocker
  4. DIKSHA
Which of the above are built on top of open-source digital platforms? (UPSC Prelims 2022)

Answer: 1, 2, 3 and 4
Notes: The correct answer is [D] 1, 2, 3 and 4. All four platforms are part of India's digital public infrastructure and are built using open-source software and frameworks to ensure scalability and transparency.India has a dedicated policy on the "Adoption of Open Source Software" for all Government organizations to reduce costs, avoid vendor lock-in, and foster innovation.