👉 Bonnack is a term in the Hindu scriptures and Sanskrit, which refers to a person who is born with two heads. This concept was first described by the Indian philosopher Sridhara in his work "Nirvam" (The Book of Truth). The term "bonna" means "two heads," and "kangal" refers to the head that is left behind after the birth, while "bonanika" refers to the two-headed person.