The correct option is Kerala.
Explanation
Natural rubber (Hevea brasiliensis) is a significant plantation crop in India, requiring a hot and humid climate with heavy rainfall (above 200 cm) and temperatures between 25°C and 35°C. India's rubber production is geographically concentrated, primarily divided into traditional regions (South India) and non-traditional regions (North East India).
Analysis
- Kerala: It is the largest producer of natural rubber in India. Historically and currently, Kerala accounts for the vast majority (often exceeding 70%) of the country's total production. The state provides the ideal tropical climate and lateritic soil required for optimal growth.
- Tripura: It is the second-largest producer of rubber in India, representing the success of rubber cultivation in non-traditional areas.
- Tamil Nadu and Karnataka: These are traditional rubber-growing states but contribute significantly less to the national output compared to Kerala.
Key Takeaway: Kerala is the undisputed leader in natural rubber production in India, followed by Tripura.