Place a medium-size wok, or a 25cm (approximately 10 in) frying pan on medium heat.
Add oil and garlic and sauté for two minutes, till fragrant. The garlic should not darken in colour.
Add prawns, haldi, zeera powder, sukha dhania powder, salt and red chili powder and continue to sauté for three more minutes till the prawns turn opaque.
Turn heat to medium-high and add tomatoes. Give the prawns a whirl with your spatula, and after one minute, turn the heat off. You don't want to overcook the tomatoes, the skin should remain almost in tact.
Sprinkle with coriander stalks and leaves and serve with crusty bread or steamed basmati.