For the best dhal puri in town, look no further than Shyam (you can call him 'Sam'). He scoots around scooping out flavourful snacks from an empty aquarium tank on the back of his motorbike. On Monday he's at the market, but if you're desperate for dhal puri at other times, give him a ring and he'll come find you.
Shyam also makes an appearance at the public schools when the students are set free from class in the afternoon.