The correct answer is 20 April, 1843.![image](//cdn. Points

• The Bengal British India Society was established on April 20, 1843, in Kolkata.

• The society was founded to promote public discussions on topics of interest to Indians and foster a sense of national consciousness.

• It was one of the earliest organizations formed for the purpose of social reform and political awareness in British-ruled India.

• Its activities included discussions on Indian grievances and the demand for reforms in the British administration.

• The Bengal British India Society later merged with the British Indian Association in 1851, forming a consolidated body to advocate for Indian interests.![image](//cdn. Information**

• The Bengal British India Society was a precursor to several organizations advocating for Indian rights and reforms under British rule.

• It played an important role in shaping early nationalist sentiments and the demand for social and political changes.

• The merger with the British Indian Association strengthened the movement for Indian self-governance and reforms in administration.