A contingent contract is a valid contract, the performance of which is based on the happening or not happening of a future event. It is defined by Section 31 of the Indian Contract Act as "a contract to do or not to do something, if some event, collateral to such contract, does or does not happen."
A wagering agreement is wherein two parties bet on an uncertain event, which is the subject matter of the agreement. Unlike contingent contracts wagering agreements are void, and Section 65 has no application to it. Money paid directly by a third party to the winner of a bet cannot be recovered from the loser.
A contingent contract and a wagering agreement are both based on the happening of a future event.
In a wagering agreement, the parties to the agreement do not have any interest in the event except winning or losing the amount of wager. In a contingent contract, parties have other vested interests as well.
All wagering agreements are contingent agreements, but all contingent agreements are not wagering agreements.
According to Section 30 of the Indian contract act, 1872, Wagering agreements cannot be enforced in any court of law as they have been expressly declared to be void.
No suit can be filed in the court of law with the intention of recovering anything claimed to be won in any wager or non-compliance of any party to abide by the results of the wager.