What is the difference between mid-term elections and by-term elections?

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Mid term Election---When elections are held much before the

schedule, it is considered as the "Mid-term Election". The

President can dissolve Lok Sabha and call a general election before

five years is up, if the government can no longer command the

confidence of the Lok Sabha, and if there is no alternative

government available to take over.

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Bye-election-- A special election to fill a vacant elective

position with an unexpired term due to demise or resignation of the

occupant.