With reference to the procedure for the removal of the Vice President of India, consider the following statements:
1. The motion for his removal can be introduced in the Rajya Sabha only.
2. The motion for his removal is required to be passed in both the Houses by Special Majority.
3. An advance notice is needed before the proceedings for the removal can take place.
4. ‘Violation of the Constitution’ is the only ground mentioned in the Constitution for his removal.
How many of the above given statements are correct?