A genuinely popular South Indian spot with standout dosa, biryani, and Chettinad-style dishes, but the no-frills room, cash-only setup, and a few serious service/portions complaints mean it’s best for food-first diners rather than polished occasions.
Ponnuswamy Restaurant earns a solid A- grade on the strength of authentic, flavorful South Indian cooking, particularly in dosa, biryani, and Chettinad specialties. Service attentiveness and knowledge vary noticeably across visits, preventing a higher grade, while the no-frills setting and modest ambiance lack the polish for grade A territory. Strong value for money and loyal repeat customers confirm dependable execution within its casual, budget-friendly category.
Ponnuswamy feels like the kind of place people keep in their back pocket: plain-looking, a bit cramped, and often busy, but loved because the food lands with real South Indian character. Diners repeatedly talk about dosa that crackles properly, curry with serious spice, and filter coffee that feels like the proper finish. A few reviews mention waits, cash-only payment, and the occasional grumpy moment, yet the overall mood is clearly one of loyal affection rather than curiosity. The cooking leans firmly toward Tamil/South Indian comfort food rather than polish or experimentation. Expect dosa, kothu parotta, biryani, Chettinad curries, vadai, and plenty of vegetarian choices, with enough seafood and meat to keep things interesting. It suits diners who care more about bold seasoning, familiar regional flavours, and good value than white-tablecloth fuss. For families, there are enough approachable items to make it workable: plain dosai, cheese dosai, chips, rice, poori, chappathi, and even a kid dosai on the menu. That said, the spice level can run hot, the room is basic, and the seating is not the sort of setup that makes long, relaxed family meals effortless. Best for kids who can handle mild South Indian food, not for those needing a bland comfort-food menu.
Area vibe: Busy central commercial and retail area with a mix of offices and nightlife.
Safety: Generally safe with good evening footfall though standard urban caution advised after late hours.
What's nearby: Near Cardiff Central transport links, shopping on Queen Street, bars on St. Mary Street and nearby student housing.
Bring cash and be ready for a busy, no-frills room with variable service
Low-key, slightly cramped, and full of South Indian character rather than fancy finishes