This project brief outlines PATH’s work in strengthening national laboratories in India to correctly diagnose tuberculosis (TB), including multidrug-resistant tuberculosis (MDR-TB). In collaboration with FIND, the World Health Organization, and other partners, PATH provided intense technical assistance to India's Revised National TB Control Program to introduce new diagnostic technologies into Indian laboratories, improve biosafety and infrastructure, build nationwide laboratory networks, and strengthen quality assurance. This work was made possible through support from the United States Agency for International Development.