BG Chap 17 - Three types of charity
Charity performed with the conviction that it should be given to a proper recipient such as a brāhmaṇa, who can protect the giver with his knowledge and austerity, without expectation of repayment, at a proper place like a holy place, and at a proper auspicious time is charity in the mode of goodness.
Charity given with expectation of reciprocation, or with desire for results in the next life such as attainment of Svarga, or given reluctantly because of lamentation that one may be put into difficulty later on for spending an amount now, or because one is forced to give by the order of guru, is charity in the mode of passion. That charity in which the person thinks ‘Why is it necessary to give so much money’ or giving inauspicious or useless items is also in passion.
Charity given with disregard for etiquette and with discourtesy, to an undeserving person, at the wrong place and time, is said to be in the mode of ignorance. Such charity is given at an unclean place, at an inauspicious time to undeserving people, and without proper respect using low forms of address.