Which party did NOT challenge the claim of Mahatma Gandhi that the Indian National Congress represented all of India at the Round Table Conference ?

Hindu Mahasabha

The correct answer is Option (4) → Hindu Mahasabha

A second Round Table Conference was held in London in the latter part of 1931. Here, Gandhiji represented the Congress. However, his claims that his party represented all of India came under challenge from three parties: from the Muslim League, which claimed to stand for the interests of the Muslim minority; from the Princes, who claimed that the Congress had no stake in their territories; and from the brilliant lawyer and thinker B.R. Ambedkar, who argued that Gandhiji and the Congress did not really represent the lowest castes.