The correct answer is: A. 1915
Chhota Nagpur Unnati Samaj was a socio-cultural organization founded in 1915 by Birsa Munda, a tribal leader from Jharkhand. The organization aimed to improve the social and economic conditions of the tribal people of Chhota Nagpur. It also worked to promote education and literacy among the tribals.
The organization was founded in the wake of the Munda Rebellion of 1899-1900. The rebellion was a major uprising by the Munda people against the British colonial government. The rebellion was suppressed, but it led to a number of reforms for the tribal people. One of these reforms was the establishment of the Chhota Nagpur Unnati Samaj.
The organization played a significant role in the development of the tribal people of Chhota Nagpur. It helped to improve their social and economic conditions, and it promoted education and literacy among them. The organization also worked to protect the rights of the tribal people.
The Chhota Nagpur Unnati Samaj is still active today. It continues to work for the development of the tribal people of Chhota Nagpur.
Here is a brief explanation of each option:
- Option A: 1915. This is the correct answer. The Chhota Nagpur Unnati Samaj was founded in 1915.
- Option B: 1920. This is incorrect. The Chhota Nagpur Unnati Samaj was founded in 1915, not 1920.
- Option C: 1930. This is incorrect. The Chhota Nagpur Unnati Samaj was founded in 1915, not 1930.
- Option D: 1942. This is incorrect. The Chhota Nagpur Unnati Samaj was founded in 1915, not 1942.