Introduction:
Dr M. S. Swaminathan is a renowned Indian scientist and agriculturalist who has made significant contributions in the field of agriculture. He is widely known for his work as a horticulturist, geneticist, and plant breeder. Let's explore each of these areas in detail to understand why Dr M. S. Swaminathan became famous.

Horticulturist:
Dr M. S. Swaminathan has made significant contributions in the field of horticulture. Horticulture is the science and art of cultivating fruits, vegetables, flowers, and ornamental plants. Dr Swaminathan's research and expertise in horticulture have revolutionized the cultivation of high-yielding and disease-resistant crops, leading to increased agricultural productivity. His innovative techniques and methods have helped farmers in India and around the world to grow a wide range of horticultural crops more effectively and sustainably.

Geneticist:
Dr Swaminathan's work as a geneticist has been instrumental in the field of agricultural genetics. Geneticists study the inheritance and variation of genes in organisms, including plants. Dr Swaminathan has conducted extensive research on the genetic improvement of crops, focusing on developing varieties with improved yield, quality, and resistance to pests and diseases. He has worked on several important food crops, such as rice and wheat, and his research has led to the development of high-yielding and disease-resistant crop varieties, which have played a significant role in increasing food production and ensuring food security.

Plant Breeder:
As a plant breeder, Dr M. S. Swaminathan has played a crucial role in developing new crop varieties through selective breeding and hybridization. Plant breeders aim to create improved plant varieties with desirable traits, such as higher yield, improved nutritional content, and resistance to biotic and abiotic stresses. Dr Swaminathan's efforts in plant breeding have resulted in the development of several improved crop varieties that have had a transformative impact on agriculture. His work has helped farmers to grow crops that are better adapted to local conditions and capable of producing higher yields, thus contributing to increased agricultural productivity and food security.

Conclusion:
Dr M. S. Swaminathan's fame can be attributed to his significant contributions as a horticulturist, geneticist, and plant breeder. His research and innovations in these fields have revolutionized agriculture, increased food production, and improved the livelihoods of farmers. Dr Swaminathan's work continues to inspire and guide scientists, policymakers, and farmers worldwide in their efforts to achieve sustainable and inclusive agricultural development.