Improvements in DRM transmission and reception are going on all the time in India, with some recent efforts for improving DRM in mediumwave being noted in and around Delhi. To understand better where DRM is nowadays and why DRM is best suited for digitising and enhancing the VHF bands we suggest you access a recent article published in India: https://www.broadcastandcablesat.co.in/roadmap-2024-drm-digital-radio-services-in-fm-band-in-india/