Marinate chicken pieces by adding red chilli powder, pepper powder and salt.
Deep fry the chicken pieces, drain and keep aside when done.
In a bowl mix together all veggies, little chilli powder, dried oregano, lemon juice and little salt.
Now take a chappati, spred the surface with schezwan sauce. Take another chapati and place on top.
Place the veggies filling in centre.
Add few drops of tomato ketchup.
Now place the fried chicken pieces, you can shred the pieces or keep it as it is.
Roll it out and serve.