First President of India:
The first President of India was Dr. Rajendra Prasad. He served as the President from January 26, 1950, to May 13, 1962. Dr. Prasad was born on December 3, 1884, in the state of Bihar, India. He was a prominent leader in the Indian independence movement and played a crucial role in shaping the Constitution of India.

Key Points:
- Dr. Rajendra Prasad was a highly respected scholar and lawyer. He obtained his education in India and England, where he studied law at the University of Dublin.
- In 1934, he became the President of the Indian National Congress and was actively involved in various freedom movements.
- Dr. Prasad was elected as the President of the Constituent Assembly, which was responsible for drafting the Constitution of India. His leadership and vision played a significant role in the development of the Indian Constitution.
- After India gained independence in 1947, Dr. Prasad was elected as the President of India when the country transitioned from a dominion to a republic on January 26, 1950.
- As the President, Dr. Rajendra Prasad focused on fostering unity and maintaining the democratic values of the country. He was known for his simplicity, humility, and dedication to public service.

Last President of India:
The last President of India, as of my knowledge, is Ram Nath Kovind. He has been serving as the President since July 25, 2017. Ram Nath Kovind was born on October 1, 1945, in the state of Uttar Pradesh, India. He comes from a humble background and has had a long and distinguished career in politics and public service.

Key Points:
- Before becoming the President, Ram Nath Kovind held various positions in the government and served as the Governor of the state of Bihar from 2015 to 2017.
- He has been actively involved in social work and has worked towards the welfare of marginalized communities, especially Dalits.
- Ram Nath Kovind's presidency has focused on promoting inclusivity, equality, and sustainable development. He has also been an advocate for women's rights and empowerment.
- As the President, he has represented India on numerous international platforms and has worked towards strengthening diplomatic relations with other countries.
- Ram Nath Kovind's presidency has been marked by his commitment to upholding the values enshrined in the Indian Constitution and promoting the overall welfare of the citizens of India.

In conclusion, Dr. Rajendra Prasad was the first President of India, serving from 1950 to 1962, while Ram Nath Kovind is the current President, assuming office in 2017. Both leaders have played crucial roles in shaping the nation and upholding its democratic principles.