Explanation:

• Markaz means center, and tablig means to convey the words of Allah and the Quran, hadith to others. At the same time, Jamaat means group. 
• Tabligi Jamaat means the group of a group. Tabligi Markaz means the center of spreading the word of Islam to other people.
• It is a non-political global Sunni Islamic evangelical movement of Indian origin, has now been termed as the “largest known viral vector” of the novel coronavirus in South Asia. 
• The teachings of Tabligh Jamaat are expressed in "Six Principles" (Kalimah (Declaration of faith), Salah/Salaat (Prayer), Ilm-o-zikr (Knowledge), Ikraam-e-Muslim (Respect of Muslim), Ikhlas-e-Niyyat (Sincerity of intention), Dawat-o-Tableegh (Proselytizaton)).
• In Markaz, only the land and the sky are mentioned here, there is a complete ban on any kind of worldly things.