The Chanakya Prize is given in the field of Political Science. It is awarded annually by the Chanakya Forum, a non-profit organization based in New Delhi, India. The prize is named after Chanakya, a Hindu statesman and philosopher who lived in the 4th century BC. Chanakya is considered to be one of the greatest political thinkers in Indian history. The prize is awarded to individuals who have made significant contributions to the field of political science. The prize consists of a cash award, a citation, and a plaque. The Chanakya Prize is one of the most prestigious awards in the field of political science in India.
Option A is incorrect because Lok sahitya written in Hindi is a genre of literature. The Chanakya Prize is not awarded in the field of literature.
Option B is correct because Political Science is the field in which the Chanakya Prize is awarded.
Option C is incorrect because Science is not the field in which the Chanakya Prize is awarded.
Option D is incorrect because Art and Sculpture is not the field in which the Chanakya Prize is awarded.