Sasikala DDivya A2020-08-252020-08-2520192319-3786https://www.malayajournal.org/articles/MJM08010009.pdfhttps://dspace.psgrkcw.com/handle/123456789/1104The goal of this paper is to establish, the properties of which exhibit the characterization of a j-open set in bi-Alexandroff topological space and some properties of j-open set are analyzed. Also we have studied the notion of j-bi-continuous function in bi-Alexandroff topological space.enAlexandroff spacebi-Alex open setsbi-Alex closed setsj-bi open setArticle