The Catholic Diocese of Bathery was established in 1978 by His Holiness Pope John Paul II and was formally inaugurated on 2nd February 1979.

The eparchy comprises of the district of Nilgiris of Tamilnadu State;
Mysore, Mandya, Hassan, Kodagu, Chickmagalore, Chamrajnagar, Shimoga, Udupi and Dakshina Kannada districts of Karnataka State and Malappuram, Kozhikode, Kannur, Wayanad and Kasargod districts of Kerala State.

The diocesan headquarters is situated in Sulthan Bathery in the district of Wayanad in Kerala.