Explanation:

Both statements are correct.

• Ad-hoc judges are retired High Court judges who are temporarily reappointed under Article 224A of the Indian Constitution to help clear the backlog of pending cases. They are appointed for a limited period and have the same powers as sitting judges during their tenure. Ad-hoc judges must be part of a Bench led by a sitting judge, as per guidelines issued by the Supreme Court to ensure proper functioning and oversight in decision-making.

Hence option 3rd is correct.