Which of the following regarding gateway city is/are correct? 1. City whose physical location makes it a link between one country and others, or between one region and others 2. A gateway city exercises control over a large area because it commands the entry and exit rights and powers for a particular country or region 3. Most gateway cities are ports, many of which were formerly administrative centres for a colonial government

A gateway city is defined in urban geography as a settlement whose location enables it to serve as a link between one country/region and others. Such cities typically command entry and exit rights — controlling trade, migration and communications — and therefore exercise influence over a much larger area than their size alone would suggest. Most gateway cities are coastal ports (such as Mumbai, Kolkata, Karachi, Singapore) and many of them were once important administrative centres under colonial rule. Hence all three statements are correct.