Handling 10 Clients with a Single UDP Server using

Question

I have already established a Server-Client Application using UDP Sockets, but my Server is not capable of handling more than one Client at a time. Now I want to modify my applicaton in such a way that there are 10 Clients each running on different machines and my Server running on a separate machine. I want my Server to be able to communicate with each of the 10 Clients running on 10 different machines. I also don't want to miss the data coming from any of the Client. What is the best possible way to do it? Kindly share some examples with me:( I have been searching it on internet since a week, but was unable to find anything that may suit my application requirements. Waiting for help.