Worked on improving address validation data integrity for the razorpay/i18nify repository, focusing on the addition of missing Indian pincodes to resolve cross-border import validation issues. Addressed failures related to specific pincodes by updating the IN.json dataset and synchronizing data across multiple versions, which prevented BAD_REQUEST_ERROR scenarios. Utilized Go for backend development and managed data consistency by updating module dependencies related to country subdivisions, currency, and metadata. Collaborated with other contributors to ensure the solution was robust and maintainable. The work emphasized precise data management and backend reliability, directly enhancing the accuracy of international address validation workflows.