Lillah means ‘for God’. It comprises any form of charity given in the cause of God on a pure voluntary basis.
For instance, many charitable organisations collect Lilah for Relief Aid, wells, hospital and orphanage running costs. These contributions are made through the goodwill of people who give solely for the pleasure of God.
This is Sadaqah Nafilah (optional charity) but is a type that does not have the condition of having to be passed into the possession of a person, as it can be given to institutes (e.g. hospitals, schools, orphanages, etc).
Zakat can only be spent directly on the poor and not on projects such as construction whereas Lilah can be utilised in construction or renovations of homes, digging Tube wells and running projects such as schools and the Deep boring rigs in various countries. Zakat money cannot be used for such projects.