Sometimes in the family, there is a potential related donor who is otherwise willing but due to blood group mis-matching criteria or due to some other medical reasons is not fit to donate organ to that particular recipient in family. Further, in another family similar situation exists. However, in these two families, donor of one family may become medically fit for recipient of other family and vice versa. These two families then make a pair and make organ transplant possible for these two recipients of different families. This is called ҳwap donationҠtransplantation. Swap transplant is legally permitted in THOA (Amended) act 2012.