Explanation:

- Bimal Julka was appointed as the Chief Information Commissioner (CIC) in March 2020. He was administered the oath of office by the President of India.

- Ajay Bhushan Pandey was not appointed as CIC. He is known for serving as the Finance Secretary of India.

- Satish Kumar Sharma does not relate to being a Chief Information Commissioner. There might be positions he holds, but not this specific one in 2020.

- Amita Pandove, similarly, was not appointed as the CIC around that time.

Your answer: Option 4 - Bimal Julka