The correct option is 1: If the Prime Minister of India belonged to the Upper House of Parliament, he will not be able to vote in his favour in the event of a no-confidence motion. This is because the no-confidence motion is only allowed in the Lower House, also known as Lok Sabha. Only members of this house can vote.
Option 2 is incorrect because any member of Parliament, regardless of whether they`re from the Upper or Lower House, can discuss the budget.
Option 3 is also incorrect as the Prime Minister can make statements in both houses regardless of his association with either of them.
Option 4 is incorrect since there`s no constitutional requirement for the Prime Minister to become a member of the Lower House within six months after being sworn in.