Where is the India's largest Strategic Petroleum Reserve is located?

Explanation

**Step-by-Step Solution:**

1. **Understanding the Concept of Strategic Petroleum Reserve (SPR):**
- A Strategic Petroleum Reserve (SPR) is a stockpile of crude oil maintained by a country to reduce the impact of disruptions in oil supply. It is crucial during emergencies such as wars or natural disasters.

2. **Identifying the Purpose of SPR:**
- The primary purpose of an SPR is to ensure energy security. In times of crisis, the reserve can be tapped into to meet the country's oil needs.

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