Kisan Diwas, also known as Farmers' Day, is celebrated in India on the death anniversary of Prime Minister Chaudhary Charan Singh. Let's delve into the details of this answer.

Prime Minister Chaudhary Charan Singh:
- Chaudhary Charan Singh was a prominent political leader from India, particularly known for his efforts in championing the cause of farmers and agriculturists.
- He served as the Prime Minister of India for a brief period from July 1979 to January 1980.
- Charan Singh was born on December 23, 1902, in the village of Noorpur in Uttar Pradesh.
- He actively participated in the Indian independence movement and was associated with the Indian National Congress during the early days of his political career.
- Later, he became a member of the Bharatiya Lok Dal (BLD) and played a crucial role in the formation of the Janata Party, a coalition of anti-Congress parties.
- Charan Singh highlighted the concerns and issues faced by farmers, such as land reforms, fair prices for agricultural produce, and rural development.
- He implemented several policies and initiatives to uplift the condition of farmers and improve the agricultural sector in the country.
- On May 29, 1987, Chaudhary Charan Singh passed away, leaving behind a legacy of advocating for the rights and welfare of farmers.

Kisan Diwas:
- In honor of Chaudhary Charan Singh's contribution to the agricultural community, Kisan Diwas is celebrated in India on his death anniversary, which is May 29th.
- The day serves as a tribute to the late Prime Minister and aims to raise awareness about the challenges faced by farmers and the importance of agriculture in the country.
- On Kisan Diwas, various events, seminars, and discussions are organized to discuss agricultural policies, farmer welfare schemes, and ways to improve the agricultural sector.
- It is an opportunity to recognize the hard work and dedication of farmers and express gratitude for their contributions to the nation's food security.

Conclusion:
Kisan Diwas is celebrated in India on the death anniversary of Prime Minister Chaudhary Charan Singh, who was a prominent advocate for farmers' rights. The day is an occasion to honor his contributions and create awareness about the challenges faced by farmers, as well as to discuss agricultural policies and welfare schemes.