Hare Krsna
Please accept my humble obeisance. All glories to Srila Prabhupada
There are different methods of donating alms.
One of the most sacred is known as tulapurusha. In this, a pair of scales is used. The person who is donating the alms ascends on one side of the scales and gold is placed on the other side until the scales are exactly balanced. This is the amount of gold that has to be donated if punya is to be acquired.
A second sort of donation is known as hiranyagarbha. In this , a pot full