Pakistani authorities have formed special task forces to crack down on 17 radical groups, including the Jamaat-ud-Dawah and Lashker-e-Taiba, in the wake of the suicide attack on the Data Darbar shrine. The Home Department of Punjab has set up the task forces comprising officials of the Crime Investigation Department, Special Branch and Anti-Terrorism Squad in several districts of the province. A report by BBC Urdu service said, the groups against which action will be taken include the JuD, LeT, Jaish-e-Mohammed, Lashkar-e-Jhangvi, Sipah-e-Sahaba, and Tehrik-e-Nifaz-e-Shariah Muhammadi, among others. Nine of the groups belong to the hardline Deobandi sect, three are Shia organisations while three are influenced by the ideology of Ahl-e-Hadith. Meanwhile, Interior Minister Rehman Malik has said the Taliban and al Qaida are working with the Lashkar-e-Jhangvi and Sipah-e-Sahaba in parts of the country, especially Punjab. About 4,000 people are currently under surveillance under the provisions of the Anti-Terrorism Act for alleged links with extremist groups. They have to inform police stations in their areas about their movements.