The peace talks process with top United Liberation Front of Asom leaders has started, Assam Chief Minister Tarun Gogoi said on Monday but ruled out that the state's sovereignty would be on the agenda. "The process for talks has started but no breakthrough achieved. However, the government is optimistic," Gogoi told reporters in Guwahati.The issue of 'sovereignity of Assam', however, would never be on the agenda for talks, he said.