What were the main features of National Food-for-Work Programme?

National Food for Work Programme was launched in 2004 in 150 most backward district of the country.
The main features of the programme are
(i) The objective of the programme is to intensify the generation of supplementary wage employment,
(ii) This programme is open to all rural poor who are in need of wage employment and are desired to do manual unskilled work.
(iii) It is 100% centrally sponsored scheme.
(iv) The food grains are provided to state free of cost.