Why do men dress up as women for garba in Ahmedabad?

In Sadu Mata ni Pol in Gujarat's Ahmedabad, men dress up as women to perform garba on eighth night of Navratri. The 200-year-old ritual called 'Sheri Garba' is performed by men of Barot community to undo and atone a curse by a woman named Saduba. She had cursed after men refused to help protect her dignity, as per locals.