India News: At a time when Indo - US ties appeared to be losing steam, President Barack Obama has invited PM Manmohan Singh for a bilateral meeting this year. <br /><br />Confirming the development, sources in Washington said that Manmohan Singh has accepted the invitation and the dates were being worked.<br /><br />India has proposed that the meeting happens when Manmohan Singh visits the US for the UNGA, but sources said that both sides are looking for a mutually convenient time between September and December. <br /><br />The invitation to Manmohan Singh comes when there has been a stalemate over civil nuclear cooperation owing to India's nuclear liability law.