Rinse the sweet corn kernels in running water and add them to boiling water.
Cook the kernels for 2-3 minutes. Drain and keep aside. Alternatively you can cook them in microwave.
In a pan, melt butter on a low flame. Add the cooked and drained sweet corn kernels and saute for 1-2 minutes. Put off the flame and transfer the kernels in a mixing bowl.
Add chopped onions, tomatoes , coriander leaves and pomegranate seeds to the sweet corn. Mix well.
Season the salad with lime juice, salt and chaat masala.