The Indian government has asked Internet companies and social media sites like Facebook to prescreen user content from India and to remove disparaging, inflammatory or defamatory content before it goes online, three executives in the information technology industry say. Top officials from the Indian units of Google, Microsoft, Yahoo and Facebook are meeting with Kapil Sibal, India’s acting telecommunications minister, on Monday afternoon, say two executives of Internet companies...The executives said representatives from these companies will tell Mr. Sibal at the meeting...that his demand is impossible...