Kuchumber Salad

1 small onion, finely chopped

1 medium cucumber peeled and chopped

2 medium tomatoes, finely chopped

1 green chilli finely chopped (remove seeds to reduce heat if needed)

2 pinch black pepper powder

2 teaspoon coriander leaves chopped

1/4 teaspoon roasted jeera powder

1/4 teaspoon or more salt

1 teaspoon lemon juice