The only leader who got Bharat Ratna Award while being at Home Minister's position was Govind Vallabh Pant.

Explanation:
The Bharat Ratna is the highest civilian award of the Republic of India. It is awarded in recognition of exceptional service or performance of the highest order in any field of human endeavor. Over the years, several leaders and personalities have been honored with this prestigious award for their outstanding contributions to the nation.

Among the leaders who have received the Bharat Ratna, only one individual was bestowed with this honor while holding the position of Home Minister. That leader is Govind Vallabh Pant.

Govind Vallabh Pant:
- Govind Vallabh Pant was an eminent leader and freedom fighter from India.
- He was born on September 10, 1887, in Almora, Uttarakhand, and played a significant role in the Indian independence movement.
- Pant served as the Home Minister of India from 1955 to 1961, under the leadership of Prime Minister Jawaharlal Nehru.
- During his tenure as the Home Minister, he implemented several important policies and reforms, including the creation of the All India Services and the establishment of the Central Bureau of Investigation (CBI).
- Pant was known for his administrative acumen and his commitment to social justice and equality.
- He played a crucial role in the development of the state of Uttar Pradesh, serving as its Chief Minister from 1950 to 1954.
- Apart from his political career, Pant was also a renowned legal luminary and served as a judge of the Allahabad High Court.

Bharat Ratna Award:
- The Bharat Ratna was instituted in 1954 and initially recognized exceptional contributions in the fields of art, literature, science, and public services.
- In 2011, the eligibility criteria were expanded to include any field of human endeavor.
- The award is conferred by the President of India and is announced on the occasion of Republic Day.
- The award consists of a certificate and a medallion.
- Some notable recipients of the Bharat Ratna include Jawaharlal Nehru, Indira Gandhi, Mother Teresa, APJ Abdul Kalam, Sachin Tendulkar, and many more.

In conclusion, Govind Vallabh Pant is the only leader who received the Bharat Ratna while holding the position of Home Minister. His contributions to the nation as a leader and his commitment to social justice and equality were recognized with this prestigious honor.