Journal of Neutrosophic and Fuzzy Systems JNFS 2771-6449 2771-6430 10.54216/JNFS https://www.americaspg.com/journals/show/973 2021 2021 PG and Research Department of Mathematics, Government Arts College (Autonomous), Karur - 639 005, India. A. Vadivel Department of Mathematics, Annamalai University, Annamalai Nagar - 608 002, India. C. John Sundar In this paper, we introduce some new operators called neutrosophic δ frontier, neutrosophic δ border and neutrosophic δ exterior with the help of neutrosophic δ-open sets in neutrosophic topological space. Also, we discuss the important properties of them and the relations between them. 2021 2021 61 70 10.54216/JNFS.010202 https://www.americaspg.com/articleinfo/24/show/973