Groundwater in Bangladesh is crucial for irrigation and food security. Most of the country relies on groundwater for drinking and farming, with deep tube wells and shallow tube wells being the main sources. This has helped increase food production and reduce poverty. However, there are concerns about groundwater quality, with pollution and arsenic contamination making the water unsafe for consumption. Over-pumping in coastal areas may also lead to saltwater intrusion and other issues. The country's economy heavily depends on water resources, and the need for sustainable management of groundwater is becoming increasingly important to ensure continued agricultural development and livelihoods.