Cook the udon noodles according to the package instruction.
Take a dutch oven or pan.Heat oil .
Add minced garlic,ginger and thai chilies.
Saute them for the most fragrant base.
Add chopped mushroom ,chopped baby corn to the pan .Saute till they look caramalized.
Add veg broth to it. Furthermore add soy sauce,oyster sauce,gochugaru ,salt and sugar.
Add kaffir lime leaves.Simmer on low flame. for 4-5 minute.
Taste and adjust the seasoning.Squeeze lime juice into the soup.
Add strained noodles to the broth .
Adjust the seasoning and serve in a bowl.
Enjoy.