Karachi is the largest city in Pakistan and the capital of the Sindh province. Located on the coast of the Arabian Sea, Karachi is a major economic and cultural hub in Pakistan, often referred to as the country's financial capital. It is the most populous city in Pakistan and one of the largest cities in the world by population.

Karachi serves as Pakistan's main seaport, handling the majority of the country's cargo and trade. The city's diverse economy includes industries such as finance, banking, textiles, shipping, and manufacturing. Karachi is also home to the Pakistan Stock Exchange, making it a central player in the nation's financial markets.

Culturally, Karachi is known for its vibrant arts scene, rich history, and diverse population, which includes people from all over Pakistan and beyond. The city is a melting pot of languages, cultures, and religions, contributing to its dynamic and cosmopolitan character. Karachi is also known for its educational institutions, including the University of Karachi, one of the oldest and most prestigious universities in Pakistan.

Despite its economic significance, Karachi faces challenges such as political instability, crime, and infrastructure issues. The city has experienced periods of violence and unrest, but it remains a crucial center for commerce and culture in Pakistan.

In June 2023, BOOM investigated a viral video that was falsely claimed to show Cyclone Biparjoy hitting Karachi.

BOOM found that the video actually depicted a recent sandstorm in Egypt and had no connection to Biparjoy or any events in Karachi or Gujarat. The video was misleadingly shared with incorrect claims about its location and context.