Gislen Software Pvt. .NET Developer interview questions

The interview process consist of 3 rounds. First round would be telephonic. Second round would be Program. Third round would be Face to Face (HR) I went for the second round and had my program test. They asked me to write two programs. I though i will be clearing the round, But suddenly they said like i have not selected and the reason is due to lack of coding and validation skills.