The correct answer is: A. 1929
The first paper mill in the state was started in 1929 by the Bengal Paper Mills Company. It was located in Durgapur, West Bengal. The mill was established with the help of the Government of India and the British government. The mill was initially set up to produce paper for the Indian Railways. However, it soon started producing paper for other purposes as well. The mill was a major success and helped to boost the economy of the state.
Option B is incorrect because the first paper mill in the state was not started in 1935.
Option C is incorrect because the first paper mill in the state was not started in 1940.
Option D is incorrect because the first paper mill in the state was not started in 1944.