International Journal of Neutrosophic Science IJNS 2690-6805 2692-6148 10.54216/IJNS https://www.americaspg.com/journals/show/672 2020 2020 Department of Mathematics and Statistics, The University of Lahore,Pakistan Sara .. Department of Mathematics and Statistics, The University of Lahore,Pakistan Ali Hamza Dept. Math and Sciences, University of New Mexico, Gallup, NM, USA Florentin Smarandache The postulation of neutrosophic numbers has been analyzed from different angles in this paper. In this current era, our main purpose is to mention Decagonal Neutrosophic numbers. The types of linear and non-linear generalized decagonal neutrosophic numbers play a very critical role in the theory related to uncertainty This approach is helpful in getting a crisp number from a neutrosophic number. The definitions regarding Linear, Non-Linear, symmetry, Asymmetry, alpha cuts have been introduced and large decision-making problems using fuzzy TOPSIS have been solved.       2021 2021 24 41 10.54216/IJNS.140102 https://www.americaspg.com/articleinfo/21/show/672