If You don't want so as to add the MoreLinq library for your challenge just to find the DistinctBy functionality then you can get precisely the same final result using the overload of Linq's Distinctive approach that normally takes in an IEqualityComparer argument. I found this issue when refactoring a https://propertyingurugram.in/signature-global-launches-gurugrams-crowning-glory-784-luxury-independent-floors-launched-in-sector-81-and-92/