What is the process to appoint ad hoc judges in the Supreme Court?
The process to appoint ad hoc judges in the Supreme Court is as follows:

1. If there is a lack of quorum among the Judges of the Supreme Court, the Chief Justice of India can make a reference to the National Judicial Appointments Commission (NJAC).
2. With the previous consent of the President and after consulting with the Chief Justice of the High Court concerned, the NJAC can request a Judge from a High Court who is duly qualified for appointment as a Judge of the Supreme Court to attend the sittings as an ad hoc Judge for a specified period.
3. The designated Judge has the duty to prioritize attendance at the Supreme Court sittings during the time required and will have all the jurisdiction, powers, and privileges of a regular Judge of the Supreme Court while attending.