Squeeze all the water from the chicken thoroughly. Place the chicken in a mixer jar and grind on the first-level speed for 10 rounds until the chicken is coarsely ground.
Add salt, green chillies, and coriander leaves to the ground chicken. Grind again for 5 rounds on the same speed.
Transfer the ground chicken to a bowl. Add finely chopped onions (make sure to squeeze out any water), ginger-garlic paste, coriander powder, cumin powder, garam masala, chat masala, turmeric powder, besan, and Byadagi chilli powder. Add 1 tbsp of water and mix everything well. Then add lemon juice or vinegar and mix again thoroughly.
Heat oil in a pan. If you are using kebab sticks, shape the chicken mixture around the sticks. Otherwise, form the mixture into long, thin cylindrical shapes, making sure they are not too thick.
Place the kebabs on the pan or grill pan. Fry and cook for 3-4 minutes until they are fully cooked and slightly golden.
Serve hot and enjoy.