Competitive Exams

I recently came across 2 individuals while returning home from office last working day, they were discussing that they were preparing for competitive exams as well whenever they get time from work.

Even though it depends from person to person which exam they want to give, are there individuals here as well ? Who are preparing for any exams ? I believe if we can share anonymously which exams were are preparing for, together we might be able to solve many doubts that we are encountering while preparing. Anyone up for this perhaps ?