Cook spaghetti in large pot of boiling salted water until just tender but still firm to bite, stirring occasionally. Drain, reserving 1/2 cup spaghetti cooking liquid. Return it to pot.
Meanwhile add chopped onion, gingergarlic paste, chilly, sliced (thin and long) carrots, sliced beans, tomato and capsicum into heated oil.Sauté it well.
Either chicken can be kept separately as fried pieces with it or it can be chopped into cube shapes and added along with the above items. In the latter case add the chicken pieces and chicken stock [mixed well in light hot water (1/2 glass)]. Season it with salt and pepper. Add tomato ketchup and soya sauce. Sauté the entire ingredients well.Evenly add the spaghetti into this masala. Mix it well Transfer to a bowl. Have it …njoy?