In this CRCT the interventions will be allocated at a community level, but the outcome assessments will be at the individual level. This is the best comparative design for the proposed interventions, which cannot be delivered to individual mothers in densely populated urban slum communities to avoid contamination of the intervention. A four year study is required to ensure an adequate "dose of the intervention" is delivered to the mothers in the intervention group, and to give time to evaluate the longer-term impact of the interventions.