22nd Rajiv Gandhi National Sadbhawna Award has been given to :

D.R. Mehta
Gautam Bhai
Maulana Waheeduddin Khan
Nirmala Deshpande

The correct answer is (c), Maulana Waheeduddin Khan.

Maulana Waheeduddin Khan was an Indian Islamic scholar, writer, and peace activist. He was born in 1925 in Azamgarh, Uttar Pradesh, India. He was the founder of the Peace Education Foundation and the Centre for Peace and Spirituality. He was also the editor of the monthly magazine Al-Risala.

Maulana Waheeduddin Khan was a strong advocate of interfaith dialogue and understanding. He believed that all religions are paths to the same God. He also believed that peace is essential for the progress of humanity.

Maulana Waheeduddin Khan was awarded the 22nd Rajiv Gandhi National Sadbhawna Award in 2018 for his contributions to communal harmony and peace.

The other options are incorrect.

(a) D.R. Mehta is an Indian industrialist and philanthropist. He is the chairman of the Mehta Group of Companies.

(b) Gautam Bhai is an Indian social worker. He is the founder of the NGO Seva Mandir.

(d) Nirmala Deshpande is an Indian politician. She is a member of the Indian National Congress.