Option 1 states that the Speaker shall preside over the House of the People. This means that the Speaker has the authority to chair the sessions of the Lok Sabha and ensure that the proceedings are conducted smoothly.

Option 2, which is the correct answer, states that the Speaker will cast the vote in the first instance in the House. This is incorrect because the Speaker does not have the power to vote in the Lok Sabha unless there is a tie during the voting. In such cases, the Speaker can exercise the casting vote.

Option 3 states that the Speaker has the power to maintain order within the House. This is true as the Speaker has the authority to regulate the proceedings, reprimand members for misconduct, and ensure that decorum is maintained during debates and discussions.

Option 4 states that the Speaker can adjourn the House or suspend the meeting till there is a quorum. This is correct as the Speaker has the power to adjourn the Lok Sabha in case of disorder or lack of quorum (minimum number of members required to conduct business).

Therefore, the correct answer is option 2, as the Speaker does not have the power to cast a vote in the first instance in the Lok Sabha.