Heat a deep pan with oil,add red onion,garlic, ginger,carrot,chilly, stir & season until vegitables becomes soften.
Now add 4 cup of water, soy souce, salt & black pepper & allow water to boil.(it needs 10 min)
Put a sieve on to another deep pan, pour all broth in that seive. keep aside all solids & pour the broth in to same pan for boiling again.
Once broth start boiling ,add chicken breast & allow to cook it on slow heat for next 7-10min (or until the breast become soft).
Then remove only breast from broth, set breast aside & continue boiling broth once again.
Add ramen noodles in the broth, cook them for 2-3 min only. be careful not to overcook them. drain excess broth from noodles.
Meanwhile slice the chicken breast in to thin pieces.
Now take serving dish or bowl, first add cooked noodles, then chicken slices,all the solid drained from the broth,coriander leaves, capsicum slices & spring onion.
Then drizzel the chily oil & serve.(reamining broth from noodles can also be serve, depend upon choice)