Correct option is A
The Hugli Industrial Region is one of India’s major industrial regions, located in West Bengal. It includes Kolkata and is a hub for jute, engineering, textile, and chemical industries. The other three regions listed are minor industrial regions with smaller-scale industrial activities.
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- Hugli Industrial Region: Major region, includes Kolkata, Howrah, and Hooghly.
- Middle Malabar Industrial Region: Minor region in Kerala, focused on spices and agro-processing.
- Indore-Dewas-Ujjain Industrial Region: Minor region in Madhya Pradesh, known for textiles and pharmaceuticals.
- Jaipur-Ajmer Industrial Region: Minor region in Rajasthan, known for marble, handicrafts, and gems.