Dip each tomato slice into the batter, ensuring it’s well coated. Deep fry in hot oil until golden and crispy from outside. Remove and let them cool slightly.
Now fill the hollow center with finely chopped onions, a bit of boiled potato (optional), and drizzle green chutney and tamarind chutney. Sprinkle chaat masala, sev, and fresh coriander on top.