Cut chicken in small cubes, finely chop green chili.
Boil spaghetti, until tender, throw water set a aside.
Add 2-3 tbsp oil in a wok, add in ginger garlic paste, stir for few seconds.
Now add chicken and chopped chili. Stir until all extra juices evaporate.
Now add in soy sauce, salt, red chili powder, vinegar, tomato puree and mix well.
Now add vegetables. Mix , taste salt and turn off the heat.
Chicken is ready.
Now in another pan add chili oil and chicken powder, stir it just for few seconds.
Now add boiled spaghetti ,salt if required and lemon juice. Mix well. Turn off the heat.
Spaghetti and chicken is ready.
Mix them together or keep some chicken on spaghetti and serve.
Serve it with extra lemon slices.