Option 1 states that the Union and State Governments are required to consult the National Commission for Scheduled Tribes (NCST) on all major policy matters affecting Scheduled Tribes. This means that the NCST has the authority to provide input and advice on important decisions regarding policies that impact Scheduled Tribes.

Option 2, which is identified as the incorrect statement, claims that all the reports and recommendations of the NCST shall be laid only before the Lok Sabha. This statement is incorrect because the NCST reports and recommendations are not limited to the Lok Sabha alone. Instead, they are presented to both the houses of Parliament, which includes the Lok Sabha (Lower House) as well as the Rajya Sabha (Upper House). Therefore, the NCST reports and recommendations are laid before both houses for consideration and discussion.

Option 3 states that the NCST has all the powers of a Civil Court while investigating any matter. This means that the NCST can summon witnesses, examine them under oath, require the discovery and production of documents, and issue commissions for the examination of witnesses or documents.

Option 4 states that the NCST has the power to regulate its own procedures. This means that the NCST has the authority to establish rules and guidelines for how it operates and conducts its investigations