What are the FOUR key differences between how Bills pass, and how Amendments pass?

The bill is passed in the houses and it waits for the approval of the houses and the members and the President can take the required action and then when a bill is signed and then it automatically becomes an amendment or a law

Explanation:

Bills are the drafts that are passed in both the houses that is the two important legislative bodies of the parliament. The bicameral legislatures requires that the bill must be passed and the bills will be published in the newspaper and the public will be asked to comment and give their opinion

There are three stages like the first reading the second reading and the third reading and after going through all these procedures the bill finally becomes a law on the joint sessions of the parliament.