"It was just a name we liked," Hemsworth explains to E! News. "I always kind of liked Indie or Indiana for a boy, and she liked India. We sort of went, 'Oh well, whether it's a boy or girl, that will decide.' It just seemed to fit."
The Aussie actor gushed: "I've wanted to have kids for a long time, and here it is, and I couldn't be happier."
Shortly after his daughter's birth, Hemsworth attended a London press junket for his new film, Snow White and the Huntsman (also starring Charlize Theron, 36, and Kristen Stewart, 22). "It's tough being here and not back with her," admitted Hemsworth, who added that fatherhood is "amazing" and "really exciting."
First-time parents Hemsworth and Pataky tied the knot in December 2010. "Having the person that you love by your side, and starting a family with them, is the best thing that can happen to you in this life," a then-pregnant Pataky told ¡Hola! in January. "You can't ask for more."
Hemsworth's latest film, The Avengers, has earned $1 billion worldwide.