Which city in Punjab is considered the industrial hub of the state?

The correct answer is: a) Ludhiana.

Ludhiana is the industrial hub of Punjab. It is known as the “Manchester of India” because of its textile industry. The city is also home to a number of other industries, including engineering, manufacturing, and pharmaceuticals.

Patiala is the former capital of Punjab and is known for its palaces and forts. Bathinda is a major agricultural center and is home to a number of sugar mills. Jalandhar is a major commercial center and is home to a number of educational institutions.