In a glass bowl, combine all the ingredients of Lo Mein Sauce and mix well.
Add 2 to 3 tablespoons of Lo mein sauce to the boneless chicken pieces. Mix well and marinate the chicken for 15 minutes or until you chop the rest of the vegetables.
Chop all the vegetables and keep ready.
Heat 4 tablespoons of cooking oil in a non-stick wok or kadhai. Add chopped ginger and chopped garlic and fry for 1 minute on medium heat or until light brown.
Then add sliced onion, fry for 30 seconds, and add the marinated chicken pieces. Stir-fry the chicken on high heat for 1 minute. Reduce the flame and cover and cook for 15 minutes or until the chicken is fully done.
Now add all the chopped vegetables (carrot, marrow, cabbage, colored capsicum). Stir well on high heat for 2 minutes along with 1 teaspoon salt.
Add boiled noodles to the vegetables, toss well on medium heat and then add the remaining lo mein sauce.
Cook the noodles along with the sauce, vegetables, and spring onion on medium heat for 5 minutes by constantly stirring.
Taste the noodles and adjust the salt and sauces. You can add more soy sauce if needed and chili sauce if you want the noodles to be spicier.
Turn off the heat after 5 minutes and serve hot.