The Ulama of Deoband are the followers of Ahl-e-Sunnah wal-Jamat (the path followed by the Prophet صلي الله عليه وسلم and his companions). They follow the Hanfi Fiqh and consider ijma and qias as authority. While contrary to this, the Ahl-e-Hadith say that taqleed is haram and shirk, they do not consider ijma and qias as authority, think of the four Imams as astray, regard three divorces given in one sitting as one and say that taraweeh is eight rakah. This group came into being in 1246 Hijri. These are the fundamental differences between Ulama-e-Deoband and Ahl-e-Hadith.
Allah (Subhana Wa Ta’ala) knows Best
Darul Uloom Deoband