Section 664
Unjust Enrichment To Be Deemed
(1) If any person gets any benefit
or advantage from another person, without for the reason of doing
any lawful act or fulfilling any obligation, the person who so gets the
benefit or advantage shall be deemed to have got an unjust
enrichment.
(2) A person shall be deemed to have got an unjust
enrichment under sub-section (1) in any of the following
circumstances:
(a) If there is an increment in his or her property or
decrease in his or her liability,
(b) If he or she receives a service from another or causes
another to do a work,
(c) If other’s property is used for him or her.
(3) Notwithstanding anything contained in sub-section (1)
or (2), even if any person gets any goods, service, benefit or
advantage in any manner, except in any of the following
circumstances, he or she shall be deemed to have got an unjust
enrichment:
(a) If any goods, service, benefit or advantage can be
obtained from any person under a law or contract,
(b) If the person, from whom any goods, service, benefit
or advantage have been obtained, has agreed with
free consent not to take back or reimburse the same.
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(4) In determining whether or not and to what extent any
person has got an unjust enrichment under this Chapter, no
consideration shall be granted to any disadvantage or loss or damage
caused thereby to him or her after he or she has got the unjust
enrichment.
(5) If a person gets an unjust enrichment pursuant to this
Section, the person shall bear the obligation under this Chapter.