Dhaka, Oct 9 (ANI): International terrorism expert and an academician in Singapore, Rohan Gunaratna, called for the banning of Bangladesh's top Islamic party, Jamaat-e-Islami, for spreading prejudice, suspicion and hatred resulting in widespread anger and acts of violence in the country. Gunaratna said that there should be movement in South Asia against the exploitation of religion. Gunaratna said that extremist and militant groups in Bangladesh have emerged from Jamaat-e-Islami ideology. He also said that there should be greater mobilization on the part of the non-governmental institutions to fight the wave of extremism.