Blend ½ cup of boiled sweet corn, make smooth paste and keep aside.
Mix the corn flour and ¼ cup of water in a small bowl, mix well till the corn flour dissolves completely and Keep aside.
Heat butter in a pan. Add garlic paste, spring onion and saut till spring onion becomes translucent.
Add chopped carrot, French beans, cauliflower, green peas, salt and mix well.
Add 2-3 cup of water or vegetable stock, mix well and bring it to a boil till veggie becomes soft yet crunchy.
Add the prepared sweet corn paste, the prepared corn flour paste, remaining sweet corn (½ cup), black pepper and mix well, again boil it for few minutes.
Veggie sweet corn soup is ready, serve hot with toast or croutons.