Bangalore, the capital city of Karnataka, is considered a:

Tier-II city
Tier-III city
Metropolitan city
Smart city

The correct answer is: C) Metropolitan city.

A metropolitan city is a city with a population of more than 1 million people. Bangalore, the capital city of Karnataka, has a population of over 10 million people, making it the third most populous city in India. It is a major center for technology and innovation, and is home to many multinational corporations.

A tier-II city is a city with a population of between 500,000 and 1 million people. A tier-III city is a city with a population of between 200,000 and 500,000 people. A smart city is a city that uses information and communication technologies (ICT) to improve the quality of life, efficiency of urban operation and services, and competitiveness.

Bangalore is a metropolitan city because it has a population of more than 1 million people. It is a major center for technology and innovation, and is home to many multinational corporations.