London
Tooting (South Indian + Sri Lankan), Wembley (Gujarati + Punjabi), Southall (Sikh + Pakistani Punjabi), East Ham + Ilford (Tamil + Kerala), Brick Lane (Bengali) — entire neighbourhoods are regionally Indian. Restaurant quality at the top tier (Tamarind, Trishna, Gymkhana, Kricket, Dishoom) is genuinely excellent; the neighbourhood-tier is even better value. Groceries: every major supermarket carries Patak's; Wembley and Tooting have proper subziwallahs.