Kindly refer to the following link(s):
About Tabligh Jamah - Sheikh Assim Al Hakeem
Who are Tablighi Jamah & Can we join them and go out on Tabligh with them?
Jemaah Tabligh by | Sheikh Assim al hakeem
How should a layman give Dawah? Must I join the Tablighi Jamah to give Dawah?
Imam follows Tablighi Jamat, should I give him dawah? Fazail e Amaal (Unauthentic book)
My family is from Tablighi Jamah, Tips on how to give them dawah?
Getting married to a guy from Tableegh who says Ilm is Noor
Listening Quran by Tablighi, Innovator, Kafir erase good deeds, nullify my Islam Types of innovation