Commonly applied to:
1) Any town or city in South India, incl. Madras, Kanchipuram & Madurai in Tamil Nadu; Bangalore, Mysore & Mangalore in Karnataka; Secunderabad, Vijayawada & Vishakhapatnam in Telingana & Andhra; & Kochi, Aleppey & Trivandrum in Kerala; or:
2) Dravida-dominated neighbourhoods in towns outside South India, incl.: Dharavi & Matunga or 'Matungam' in Bombay, Scarborough or 'Little Jaffna' in Toronto, Tekka in Singapore & Brahmpur or the 'Jaffna of Kolkata'.