South Asia's sandwich traditions are among the world's most vibrant and underappreciated — built on centuries of street food culture, extraordinary spice knowledge, and the creative use of local bread forms. India's vada pav is the definitive example: a deep-fried spiced potato dumpling (vada) in a soft bread roll (pav), with multiple chutneys (green coriander, tamarind, dry garlic), served from stalls outside railway stations and market squares throughout Maharashtra. Mumbai alone has an estimated 10,000 vada pav vendors. The kati roll of Kolkata is a different tradition entirely — a paratha (flatbread) cooked on a tawa, wrapped around spiced meat or egg with onion and lime — a street food of extraordinary elegance. The Frankie, created in Mumbai in the 1960s, is a broader category of rolled flatbread sandwiches. The dabeli — a Kutch specialty of spiced potato filling with pomegranate seeds, tamarind chutney, and sev (crispy chickpea noodles) in a pav — is barely known outside Gujarat but is one of the most complex flavor assemblies in the sandwich world. Sri Lanka's egg kottu — chopped roti, egg, and vegetables or meat cooked on a hot griddle — is technically a deconstructed sandwich reassembled hot. Misal pav — a spiced sprouted legume curry with bread — is Maharashtra's breakfast staple. Pakistan's kheema pav follows similar bread-and-spiced-meat logic. The region's sandwich intelligence is spice intelligence applied to portable bread-based food.