Explanation:

Here’s a breakdown of the options:

- Option 1: Only in Lok Sabha

- ? Not correct. The impeachment proceedings against the Vice-President cannot be initiated only in the Lok Sabha.

- Option 2: In neither House of Parliament

- ? Not correct. The Constitution allows for such proceedings in Parliament.

- Option 3: In either House of Parliament

- Correct. The proceedings for impeachment of the Vice-President can be initiated in either the Rajya Sabha or the Lok Sabha. The notice must be given and passed by a majority and then agreed to by the other House.

- Option 4: Only in Rajya Sabha

- ? Not correct. While the Vice-President is the Chairman of the Rajya Sabha, the initiation can be from either House, not just Rajya Sabha.