create singleton object for a class which is inherited from the interface in c#(budget is fixed,so please don't overbid, I can not accept)

Hi, Hope you are doing well. I HAVE UNDERSTOOD THAT YOU WANT TO MAKE SINGLETON OBJECT FOR CLASS AND USE IN ANOTHER CLASS. I have more than 5 years experience in C#.Net, MVC, ASP.NET, VB.NET, APIs, Webservice, SQL Server, MySQL, MongoDB, Bootstrap, AJAX, Kendo UI, and Jquery. Thanks for considering my proposal. Sincerely Yours Krunal S.