Pregnancy-induced hypertension causes 14% of maternal death and is the secon most common cause of maternal deaths worldwide. The majority of maternal deaths from PIH could be avoidable through the provision of timely calcium supplementation. Considering PIH is a global priority, the World Health Organization (WHO) recommends calcium supplementation as the dose of 1.5-2.0 g of calcium daily for all women in areas where dietary calcium intake is low and for those at high risk of developing pre-eclampsia. However, logistically this dosage is heavy to transport and calcium tablets are moderately expensive. Nevertheless, excessively high levels of calcium supplementation may also be harmful. But the use of low-dose calcium in maternal health and nutrition programme is still rare. BRAC Health, Nutrition and Population Programme in collaboration with the Alive & Thrive project of FHI360, has been implementing some key maternal nutrition interventions (MNI) incorporated into an already existing maternal, neonatal and child health (MNCH) programme. One of the interventions of the programme was delivery of low-dose calcium (Calcium carbonate tablet 500 mg/day). These data provide us with an opportunity to assess the coverage, compliance, and effectiveness of low-dose calcium in a large MNCH programme.