India News: There have been protests in India after an attack in a Pakistani prison left convicted Indian spy Sarabjit Singh in a coma.Singh, a high-profile prisoner on death row for more than 21 years, was attacked by inmates armed with bricks in Lahore's Kot Lakhpat jail on Friday.<br /><br />Singh is in intensive care with severe head injuries. Two inmates have been charged and two officials suspended.Indian PM Manmohan Singh described the attack as "very sad".