The percentage of blocks reporting fewer than one Kala Azar case per 10,000 population is a critical metric for tracking the elimination of this neglected tropical disease in endemic regions. This measure reflects the success of targeted interventions, including vector control, active case detection, and access to effective treatment. Achieving and sustaining this threshold indicates significant progress toward interrupting disease transmission and reducing the public health burden. Endemic blocks that consistently meet this criterion demonstrate the effectiveness of community engagement, health system strengthening, and surveillance mechanisms. Monitoring this metric helps identify areas requiring intensified efforts to achieve universal compliance and ensures that no pockets of high transmission persist. This progress is vital for countries aiming to meet World Health Organization (WHO) elimination targets, ensuring that Kala Azar no longer poses a public health threat.