NEW DELHI: The attack in Gurdaspur resonated in Lok Sabha today with members cutting across party lines condeming it and saying that the incident demonstrated that the terror threat to India is "perceptible" and that all force should be used to fight the scourge.Members of Akali Dal, BJP, CPI(M) and BJD spoke on this morning's attack during the Zero Hour amidst the din created by members of Congress, NCP, Left, Trinamool Congress, Samajwadi Party, RJD, JD(U) and TRS over various issues.Congress members, holding placards in the Well, were demanding ouster of External Affairs Minister Sushma Swaraj, Rajasthan Chief Minister Vasundhara Raje and Madhya Pradesh Chief Minister Shivraj Singh Chouhan over various controversies.Members from SP, RJD and JD(U) were demanding release of the census report, while TRS members were demanding a separate High Court for Telangana.Prem Singh Chandumajra of Akali Dal, who hails from Punjab , raised the issue of the attack, in which four heavily armed terrorists went on a rampage this morning, targeting a bus and a police station complex, leaving a number of policemen and civilians dead and injured.He urged the slogan-shouting opposition members to halt their protest in view of the attack as it is in the national interest."I appeal to you, in the national interest, halt your protest for two minutes as there has been an attack in Gurdaspur," he told the Congress members who were in the Well shouting slogans against Prime Minister Narendra Modi and the government."This is a question of the country's security. People are dying... People of the state are watching. They are watching this drama (in the House)," the Akali member said.BJD member Tathagat Sathpathy said the incident in Gurdaspur was a "grave matter", which shows that "once again terrorism is back with full force. It is not only display of ISIS flags, the threat of terrorism is perceptible here. The threat is right here in the country."He said all political parties should unite against the fight against terrorism."We are not here to politicise...Strictest action should be taken. All force should be used. India should stand up to fight terrorism," the BJD member from Odisha said.