Inclusion Criteria for communities:  No other ECD programs present in the community or neighboring communities; At least 40 children monitored at the nutrition center in the target age range of 6-30 months (monitored is defined as attending at least one growth monitoring session between July 2019 to August 2020); Stable supervisory presence. Local NGOs are contracted to monitor and supervise all community health workers and help to strengthen linkages with local structures such as the community health committees and primary care facilities. Each NGO supervisor is in charge to up to 9 communities, which they visit twice a month. The investigators defined stable presence as not having had NGO turnover within the last year.  Among the communities included, children 6-30 months were eligible to participate in the intervention. There was no inclusion criteria for community health workers.