Harlakhi is a Sub-District (Tehsil/Block/Mandal) in the Madhubani District of Bihar. As par Census 2011 information the sub-district code of Harlakhi is 01081. There are about 21 sub-districts in Madhubani and Harlakhi is one of them. Andhratharhi, Babubarhi, Basopatti, Benipatti, Bisfi, Ghoghardiha, Jainagar, Jhanjharpur, Kaluahi, Khajauli, Ladania, Lakhnaur, Laukaha, Laukahi, Madhepur, Madhubani, Madhwapur, Pandaul, Phulparas, Rajnagar etc. are other sub-districts in Madhubani.There are about 43 villages in Harlakhi sub-district, which you can browse from villages list.