Give one significant contribution of the following scientist :
M. S. Swaminathan

Explanation

**Step-by-Step Solution:**

1. **Identify the Scientist**: The scientist in question is M. S. Swaminathan.

2. **Recognize His Title**: M. S. Swaminathan is often referred to as the "Father of the Indian Green Revolution."

3. **Understand His Contribution**: His significant contribution to agriculture in India was the introduction of high-yielding varieties of crops, particularly wheat and rice.

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