Which state has recently introduced the Cy-TB skin test to detect Latent Tuberculosis Infection (LTBI)?

Kerala has recently introduced the Cy-TB skin test to detect Latent Tuberculosis Infection (LTBI) under the National TB Elimination Programme (NTEP). Cy-TB is a new-generation intradermal skin test using Mycobacterium tuberculosis-specific antigens called ESAT-6 and CFP-10. It is more accurate than Mantoux or IGRA (Interferon-Gamma Release Assay) tests and does not need blood samples. It helps in early detection of dormant TB to prevent it from becoming active. It is used for adults above 18, especially in high-risk or contact groups.