Working Tax Credit

Working tax credit benefits the people who work and are low on income. I've seen various criterion of this credit such as that you should work for a certain numbers of hours to qualify. From 25 to 59 age group people, the work should be done for at least 30 hours a week, 16 hours from people aged 60 or over, including those who are disabled. And there is no set income limit for working tax credit as it depends upon some of your circumstances.
I would like to know more in this regard. Any highlights?