The correct answer is 1905 .

The correct answer to the question “Boycott of British goods was adopted as a national policy in” is 4) 1905.

The boycott of British goods was a significant strategy adopted by Indian nationalists during the Indian independence movement. It was aimed at promoting the use of indigenous products and boycotting British goods and services, which were seen as symbols of colonial exploitation.

The boycott of British goods was first proposed by Lokmanya Tilak in 1905 as a response to the partition of Bengal by Lord Curzon. The partition of Bengal was seen as a move by the British to divide and weaken the Indian nationalist movement. The boycott was aimed at exerting economic pressure on the British and promoting the use of indigenous products. The boycott movement gained momentum and became a national policy in 1905 when the Indian National Congress endorsed it at its session in Benaras.

The boycott movement was not limited to economic measures but also included the boycotting of British institutions such as schools and universities. This was seen as a way to assert Indian culture and identity and promote self-reliance and self-sufficiency.

The boycott movement played a significant role in the Indian independence movement and was an effective tool for mobilizing popular support and exerting pressure on the British. It was also an important expression of Indian nationalism and pride in indigenous culture and heritage.