Advent of Imam Mehdi has taken place, henceforth anyone claiming to be Imam Mehdi is an impostor. That is the Shia view. Imam Mehdi exists and lives in the world, his life prolonged and his appearance hidden until the appointed day. The Sunni view is that he is yet to be born.
It is not clear, in this article, what type of "Mahdi" the Pakistani was claiming to be. I think a false appearance of the occulted one, as he refers to "Imam Mehdi."
... or Deen-e-Younas is a new brand:
http://www.dailytimes.com.pk/default.asp?page=2005\12\24\story_24-12-2005_pg7_3
8 more "Imam Mehdi" disciples arrested
Staff Report
LAHORE: Police have arrested eight more followers of Shahbaz Khan, the self-proclaimed "Imam Mehdi", who were planning to take out a procession in Faisalabad, Amir Zulfiqar Khan, senior superintendent of police, told reporters on Friday.
The SSP said law enforcement agencies would not let anybody play with religions and beliefs. He said the followers of Shahbaz Khan had their own "Kalma", which was totally different from that of Muslims.
The SSP said police raided several places in the Sattokatla, WAPDA Town B-Block and Nawankot areas to arrest the men. Police also seized several weapons, CDs, computers, a list of friends, including women settled aboard, and international air tickets. "These people have a strong network and are keeping a very low profile. They have a heart-shaped monogram on which the word Allah is printed. Anjuman-e-Sarfaroshan-e-Islam is also written," SSP Khan said. He said the men had planned to arrange processions similar to the one Shahbaz Khan took out a few days ago. Shahbaz and his accomplices were arrested after a gunfight with police, which left two followers dead.
The SSP said Shahbaz Khan's followers were confident of their beliefs. "They are completely convinced that they are following the right man," he said. He said there could be chances that Khan's network is being funded by foreign elements. However, he said investigations were underway. "We are contacting Interpol to arrest Younis in the United Kingdom because he is also backing Shahbaz's activities," the SSP said.
The men arrested include Raja Fiaz from Mianwali, Muhammad Bilal from Gojra, Tariq Saeed from Sherakot, Lahore, Nazar Zakir from Jhang, Muhammad Siddique from Mansehra and Qazi Farooq from Chakri Pindi.
My comment: Kalma is the Islamic creed.