Explanation:

- The impeachment proceedings against the Vice-President of India are dealt with in Article 67(b) of the Constitution.

- Proceedings can be initiated only in the Rajya Sabha.

- After passing the resolution in the Rajya Sabha by an absolute majority, it is sent to the Lok Sabha for agreement.

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- Option 1 (Only in Lok Sabha): Incorrect – Initiation can't happen in Lok Sabha.

- Option 2 (In neither House of Parliament): Incorrect – It must be initiated in Parliament, specifically Rajya Sabha.

- Option 3 (In either House of Parliament): Incorrect – Only Rajya Sabha can start the process, not both houses.

- Option 4 (Only in Rajya Sabha): Correct – Only Rajya Sabha can initiate impeachment proceedings.