In a pot, place half of garlic, onion and ginger.
Then add tilapia and pour in water, soy sauce, vinegar and vegetable oil.
Next, add in remaining garlic, onion, ginger, bay leaves and peppercorns.
Let it boil using medium heat. Simmer over low heat and add green chili. Season with salt to taste if needed.
Let it simmer until all the sauce is absorbed.
Serve it hot and enjoy!