Accurate measurement is a prerequisite for healthcare patient safety. NABL calibration ensures that the scientific instruments and diagnostic equipment deliver the correct diagnosis. Blood pressure monitors, thermometers, and laboratory testing equipment need constant NABL calibration to get the work done properly. Incorrect readings of these equipment may lead to incorrect diagnostics or inappropriate treatment, which may prove fatal for the patients. NABL calibration guarantees the healthcare organization that its apparatus functions within stipulated limits of precision. Implementation of NABL calibration standards among health care organizations will ensure care delivery to their patients and ensuring the safety as well as efficiency in the medical procedures as an act of device servicing.