Multi-Criteria Decision Making (Mcdm) Has Found a Lot of Use In Everyday Life. Topsis (Technique For Order Preference By Similarity to Ideal Solution) Is One of the Mcdm Technique Which Aims to Find the Optimal Solution By Finding a Solution Which Is Nearest to the Ideal Solution and Is Farthest from the Negative Ideal Solution. This Paper Demonstrates Topsis Taking a Case Study of Hostel Allocation. There Are Lots of Criteria By Which Hostel Allocation Can Be Done to a Student. These Criteria Conflict With Each Other and to Take Better Decision Topsis Has Been Used For Decision Making.