The Twitter account of public broadcaster Prasar Bharati's chief executive was among those blocked by the social networking company on Monday amid a broad sweep of users found using a hashtag deemed inappropriate by the government. The account was restored later in the evening. Shashi Shekhar Vempati's account was "withheld" inadvertently by Twitter, government sources said, as authorities asked the US company to take down accounts that had used the hashtag #ModiPlanningFarmerGenocide during the ongoing farmers' protests.