In a tough message to the United Liberation Front of Asom (ULFA), Prime Minister Manmohan Singh today said that there would be no compromise if it resorted to violence, but the doors for dialogue were open."ULFA resorted to shameless and gruesome acts of terror, and there will be no compromise with these groups if they resort to violence. At the same time, I would like to reiterate that the doors for dialogue are open to all disaffected groups, including ULFA, who are willing to abjure violence," Singh told a press conference at the Mohanbari Airport near here.The Prime Minister said there was a very large constituency for peace, and delegations from all shades of political opinion had met in Delhi and asked for establishment of peace in Assam."Surveys are repeatedly showing that there is absolutely no support in Assam for acts of violence and terror. There is a surge of anti-ULFA sentiment. People want to get on with their lives and improve their lot rather than be victims of fear and terror," he said.The Prime Minister said his message for the people of Assam was that the centre was firm in its resolve to work with the people and the state government to ensure that terrorist outfits did not succeed in their nefarious designs.He was speaking after visiting some areas in Tinsukia and Dibrugarh districts where ULFA had killed 70 Hindi-speaking migrants in four days since January 5.