Jayapaul, K. 2025. Study on Vasicinone Production and Precursor Feeding from Callus Cultures of Justicia Adhatoda . RESEARCH REVIEW International Journal of Multidisciplinary. 10, 9 (Sep. 2025), 07–17. DOI:https://doi.org/10.31305/rrijm.2025.v10.n9.002.