Tiwari  turned into a "believer" in 2007 when during his stay in Florida to become a commercial pilot, he experienced paranormal phenomena. The ghost hunter experienced poltergeists and heard disembodied "whispers" in the apartment he was sharing with four other people. One of his flat mates also apparently saw an "apparition" of a young girl.

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During his investigations, Tiwari has visited around 6000 paranormal locations where he has investigated "hauntings", "mysterious creatures" and "UFO abductions".