The correct answer is: Diamond Cutting & Polishing.
Surat is a city in Gujarat, India, and is known as the “Diamond City” because of its diamond cutting and polishing industry. The city is home to over 50,000 diamond cutting and polishing units, and employs over 4 million people. The diamond industry is a major contributor to Surat’s economy, and accounts for over 50% of the city’s exports.
The textile industry is also a major employer in Surat. The city is home to over 10,000 textile mills, and employs over 1 million people. The textile industry is a major contributor to Surat’s economy, and accounts for over 20% of the city’s exports.
The petrochemical industry is a growing industry in Surat. The city is home to over 20 petrochemical plants, and employs over 100,000 people. The petrochemical industry is a major contributor to Surat’s economy, and accounts for over 10% of the city’s exports.
The shipbuilding industry is a small industry in Surat. The city is home to over 10 shipyards, and employs over 10,000 people. The shipbuilding industry is a minor contributor to Surat’s economy, and accounts for less than 1% of the city’s exports.