Pat chicken pieces dry, leaving a bit of moisture as this will help in binding the ingredients. Combine ginger-garlic paste, chili powder, flour, 1 teaspoon oil, and salt in a bowl; mix nicely. Coat each piece of chicken with the mixture.
Heat 1 cup oil in a deep skillet over medium heat.
Fry chicken pieces in batches in the hot oil until golden brown and no longer pink in the centers, 5 to 7 minutes per batch, making sure not to overcrowd. Drain on paper towels. Serve hot.