The Congress on Wednesday said that "mischievous" changes were made in Wikipedia pages related to former prime minister Jawaharlal Nehru through a government of India IP address."Wikipedia pages of Jawaharlal Nehru and Motilal Nehru were altered. What is worse (is) it was done from a government Internet Protocol address and from National Informatics Centre," Congress spokesperson Randeep Surjewala told reporters here.He also demanded a response from Prime Minister Narendra Modi on the matter."Will the Prime Minister answer how were the Wikipedia pages of former prime minister and Congress leaders altered through a government IP address," Surjewala asked.