Option 1: Ramnath Puri and Vir Savarkar. These individuals were not involved in setting up the United India House in the USA. They were prominent figures in the Indian independence movement but their involvement in this specific activity is not documented.
Option 2: Taraknath Das and G.D. Kumar. This is the correct answer. Taraknath Das and G.D. Kumar were Indian revolutionaries who established the United India House in the USA. United India House was a center for Indian nationalist activities, aimed at promoting the cause of Indian independence from British rule.
Option 3: Lala Hardayal and Bhagat Singh. While Lala Hardayal and Bhagat Singh were important revolutionaries in the Indian independence movement, they were not involved in setting up the United India House in the USA.
Option 4: Harnam Singh and Bhagwan Singh. There is no documented evidence of Harnam Singh and Bhagwan Singh`s involvement in the establishment of the United India House in the USA. Therefore, this option is incorrect.
Alert - correct answer should be: Option 2 Taraknath Das and G.D. Kumar.