Biofortification is a practical approach to improve the public health. Name any four such crops released by IARI.

Explanation

**Step-by-Step Solution:**

1. **Understanding Biofortification:**
- Biofortification is the process of breeding crops to enhance their nutritional quality, specifically by increasing levels of vitamins, minerals, proteins, and healthier fats. This approach aims to improve public health by providing better nutrition through staple crops.

2. **Identifying the Organization:**
- The Indian Agricultural Research Institute (IARI) is the organization responsible for developing and releasing biofortified crops in India. It is located in New Delhi.

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