Acting Chief Justice
The President can appoint a judge of the Supreme Court as an acting Chief Justice of India when:
1. the office of Chief Justice of India is vacant; or
2. the Chief Justice of India is temporarily absent; or
3. the Chief Justice of India is unable to perform the duties of his office.
Ad Hoc Judge
- Appointment: The Chief Justice of India can appoint a High Court judge as an ad hoc judge of the Supreme Court for a temporary period when there is a lack of quorum of permanent judges.
- Consultation Required: The Chief Justice must consult with the chief justice of the High Court concerned and obtain the president's consent before making the appointment.
- Qualifications: The appointed ad hoc judge must be qualified for appointment as a Supreme Court judge.
- Duties and Privileges: The ad hoc judge prioritizes Supreme Court duties and enjoys the jurisdiction, powers, and privileges of a Supreme Court judge during their appointment.
Retired Judge
- Request for Service: The Chief Justice of India can ask a retired Supreme Court or High Court judge to act as a judge of the Supreme Court for a temporary period.
- Consent and Approval: The request requires the retired judge's consent and the president's approval.
- Allowances and Benefits: The retired judge receives allowances as determined by the president and enjoys the jurisdiction, powers, and privileges of a Supreme Court judge during their temporary service.
- Not Deemed Supreme Court Judge: The retired judge serving temporarily is not considered a Supreme Court judge in any other context.
