Adequate maternal healthcare practices are crucial to both maternal and infant nutrition outcomes. The Sylhet region of Bangladesh is vulnerable and performs poorly, as maternal and child health indicators are falling behind compared to other areas. Suchana, a large‐scale intervention programme aims to improve the health and nutritional status of mothers and children in this region. The objective of the present analysis is to assess the changes in indicators related to maternal healthcare practices among Suchana beneficiaries. We obtained data from the Suchana baseline and endline evaluation survey. Descriptive statistics were employed to summarize data. The following maternal healthcare practices were considered: if a Suchana beneficiary mother received antenatal care (ANC) from skilled service providers, took day time resting during pregnancy, consumed additional diet during pregnancy, took at least 100 iron‐folic acid (IFA) tablets during pregnancy and took a vitamin A capsule after delivery. Logistic regression analysis was performed to assess the impact of the Suchana intervention on maternal healthcare practices. The prevalence of the outcome variables at endline in the intervention area were as follows: 40% of mothers received at least four ANC from skilled service providers, 50% practiced daytime resting during pregnancy, 51% consumed additional diet during pregnancy, 41% took at least 100 iron‐folic acid tablets during pregnancy, 39% received postnatal care and 30% took a vitamin A capsule after delivery. The Suchana intervention significantly, positively improved indicators related to maternal healthcare practices; these findings support future larger‐scale programmes to improve maternal healthcare practices among vulnerable people in rural Bangladesh.