Swaran Soft Support Solutions Software Developer interview questions

I got call from there IT recruiter. Process took 3+ weeks . I went for first round it was face 2 face round where some questions from C# and oops and they asked for connecting a database to registration usingC# . And then next week one more interview to the manager they told me about company and their projects and even asked me to fill all my details in a paper. Next week no response from their side I asked them about my result they said may we need you later but now the position is closed. Don't understand why they wasted my 3 weeks.