"If someone is making a film about a commando, we can't expect the actor to be a commando in real life, do we?" he said.
Telugu director Sagar Chandra, who made romantic-thriller "Ayyare", says that at the end of the day it boils down to a perfect mix of beauty and brains.
"Most native actresses may be really good, but they hesitate to chip in commercial elements such as glamour. Moreover, models from northern India have a welcoming attitude and take roles in the right spirit," he said.