Anarmani substation with single bus system, located at Anarmani of Jhapa district, Mechi Zone , provides electricity to Dhulabari, Damak, Ilan, Chandragadhi, Surunga and Garamani. This substation is connected to Duhabi substation by 132 kV single circuit line. The 53 MW Puwalkhola power station is connected to this substation by a 33 kV line. This substation was put into operation in 1992 with 132/53 kV with two 7.5 MVA transformers and upgraded to 2x15 MVA in 2013 and 2004. one of the 2x15MVA transformers was installed. upgrade to 30MVA. The current 15 MVA transformer was replaced by 30 MVA in 2009.