Explanation:

- Contempt proceedings: The Indian Evidence Act does not apply to contempt proceedings. These are governed by separate rules that ensure the integrity and authority of the judicial system.

- Affidavit: The Indian Evidence Act does not apply to affidavits. Affidavits are considered written statements confirmed by oath for use as evidence, and their admissibility is governed by specific regulations outside the Indian Evidence Act.

- Proceedings before arbitrator: The Indian Evidence Act does not apply to arbitration proceedings. Arbitrators have the flexibility to determine their own procedures, often tailored to the needs of the disputing parties.

- All of them: All the above are outside the scope of the Indian Evidence Act.