Can you explain the composition, powers, and procedure of a commission appointed under Article 339(1)?
The composition, powers, and procedure of a commission appointed under Article 339(1) are not explicitly mentioned in the provided context. However, we can infer that such a commission would be responsible for investigating the administration of Scheduled Areas and the welfare of Scheduled Tribes within Indian states. The President has the authority to define its composition, powers, and procedure, as well as any incidental or ancillary provisions deemed necessary or desirable.