Mistake means as incorrect belief about something. It leads another party to misunderstand the terms.
Bilateral Mistake:
“Bilateral mistakes are the mistakes where both parties to an agreement are under mistake as to the matter of fact essential to the agreement, there is a bilateral mistake and agreement is void.”
Examples of Bilateral Mistakes:

1. Example:
Ali comply with put up for sale his automobile to somebody for Rs.150000. Neither the person nor he is aware of that his automobile was destroyed previous nighttime. Consequently the contract can’t probably be carried out. The contract may be stay away from by either party.
2. Example:
Saad has to purchase goods from Fahad which was in shop of Fahad. The shop of Fahad was entirely destroyed through the flames a day before. The agreement is void because mistake is mutual.
3. Example:
Ali has the same opinion to put up for sale to Faisal a particular shipment of products that is on its approach as of overseas. However, sadly the boat carrying the shipment cast out previous to the date or discount. Neither Ali nor Ahmed was responsive to this. Here the case is of bilateral mistake.
4. Example:
Shahwaiz in agreement to require a rent of a workplace as of Shahmir, Shahwaiz was previously permitted to the workplace. However no party by the side of the moment of the dealings was responsive to truth condition of title. The conformity was detained to be void as it is done under mistake.
5. Example:
Ahmer have the same opinion to put up for sale to Bilal his camel. Although by the side of the moment of the conformity, camel had previously passed away. Neither Ahmer nor Bilal was responsive of this. Along with as a result here is no contract in any respect at as because of a mistake of fact it is void.
6. Example:
Denial goes into a contract by way of Raza to engage in recreation in a very performance, on a specific day of the week, to be prearranged by the latter. However, Denial couldn’t contribute within the plan because of sickness on it day. The court of rule commands so as to the contract turn out to be void on explanation of impracticality to carry out.
7. Example:
A gray slab was sold-out underneath an error on its heaviness. Here was a distinction in price among the weight because it was imagined to be. Because of mistake agreement was void.
8. Example:
Arif who was aged gentleman of reduced spectacle supported the bill of exchange thought it absolutely was an assurance. Detained, there was no contract on the bottom that the intellect of the signer failed to escort the signature.
9. Example:
Imran engraved to Waqar providing to put up for sale sure possessions for Rs1500. He had earlier declined a suggestion from Waqar to shop for a similar property for Rs.2500. Waqar who knew that this provider of Rs.1500 was an error for Rs.2500, directly acknowledged provide. Detained, Waqar be acquainted with absolutely fine that provide was created through mistake and hence the contract couldn’t be enforced.
10. Example:
Usman conform to purchase land on street; once reaching to observe the land before the acquisition was finishing. Usman notice with the intention of the land is on Road not on street. Usman will stay away from the contract as a result of mistake of the subject matter.