He has participated in several symposia and dialogues with prominent personalities of other faiths. His most famous debate was a public dialogue with William Campbell, a Christian missionary from the United States, on the topic of “The Quran and the Bible in the light of science”, which was held in Chicago, Illinois on April 1, 2000.
In 2004, he visited New Zealand and then Australian capitals at the invitation of Islamic Information and Services Network of Australia. In this conference in Melbourne, according to a famous journalist Sushi Das, he extolled the moral and spiritual superiority of Islam.
In December 2005, he took part in a debate with Dr William Cambell; the topic was Islam and Christianity in the light of science, where both discussed perceived scientific errors in the scriptures. At the end of the debate a weary William Campbell was unable to answer any of the allegations that Dr. Zakir Naik raised about the Bible. However, Zakir Naik was able to clear all the misconceptions about the Quran.
On 21 January 2006, he held an inter-religious dialogue with Sri Sri Ravi Shankar. The event was about the concept of God in Islam and Hinduism, the aim being to bring understanding between the two major religions of India, and at best to point out the commonalities between both Islam and Hinduism, such as how idolatry is prohibited. It was held in Bangalore, India with up to 50,000 attending at the Palace Grounds.
2010 exclusion from the UK and Canada
Naik was denied entry into the United Kingdom and Canada in June 2010. He was banned from entering the UK by Home Secretary Theresa May after arranging to give talks in London and Sheffield. May said of the exclusion order, “Numerous comments made by Dr Naik are evidence to me of his unacceptable behaviour”. Naik argued that the Home Secretary was making a political decision and not a legal one, and his lawyer said the decision was “barbaric and inhuman”. He also claimed that his comments were taken out of context. Film producer Mahesh Bhatt supported Naik, saying the ban constituted an attack on freedom of speech. It was reported that Naik would attempt to challenge the ruling in the High Court. His application for judicial review was dismissed on 5 November 2010. Naik was forbidden from entering Canada after Tarek Fatah, founder of the Muslim Canadian Congress, warned MPs of Naik’s views.
Visit to Malaysia in 2012
Naik delivered five lectures in Malaysia during 2012. The lectures took place in Johor, Universiti Teknologi MARA Shah Alam, Penang, Kuantan and Putra World Trade Centre.The former Prime Minister of Malaysia, Mahathir Mohamad, prominent figures and several thousand people attended the lectures at different places despite protest by the members of a banned group, HINDRAF. The organizers of Naik’s speeches said their purpose was to promote harmony among people.