I have been told that the Tabligh Jamaat is a deviant sect, and that I should not join them.

Answer

The Tabligh Jamaat is not a sect. Members from all Math-habs join the Tabligh Jamaat to learn and propagate the very basic teachings of Islam - the Kalimah, Tahaarat, Salaat and Saum. The Tabligh Jamaat does not teach anything new. It teaches only the Sunnah of Rasulullah (sallallahu alayhi wasallam), and it concentrates on only the basic acts necessary for the daily life of the Muslim. They do not delve into any academic issues. Those who say that the Tabligh Jamaat is a deviated sect are in grievous error. You should join the Jamaat and discover for yourself what they teach to satisfy yourself.