The correct answer is Gurgaon.
Gurgaon is a city in the Indian state of Haryana. It is located in the National Capital Region (NCR) and is one of the most developed cities in India. Gurgaon is known for its IT industry and is home to many multinational companies. The city is also a major industrial hub and is home to many manufacturing units.
Faridabad is another major city in Haryana. It is located in the NCR and is a major industrial hub. Faridabad is home to many manufacturing units and is also a major center for the automobile industry.
Panipat is a city in Haryana that is known for its historical significance. The city was the site of two major battles in Indian history, the First Battle of Panipat in 1526 and the Third Battle of Panipat in 1761. Panipat is also a major industrial hub and is home to many manufacturing units.
Rohtak is a city in Haryana that is known for its agricultural produce. The city is also a major educational center and is home to many universities and colleges. Rohtak is also a major industrial hub and is home to many manufacturing units.
In conclusion, the correct answer to the question “Which city in Haryana developed as a major industrial and IT hub?” is Gurgaon.