Heat butter in a pan. Add chopped zucchini and red bell pepper. Saute for 1 min on medium flame. Now add corn and roast for another minute.
Now add red chilli powder, chilli flakes and salt as per taste. Give a good mix.
Take out the mixture in a bowl. Garnish with cherry tomatoes, lemon, coriander leaves, sev and garlic mayo. Give a toss and serve.