Unofficial Docker images exist, but the vendor does not support containerized deployments until version 6.4 (planned Q4 2025).
ISM V6 is designed to be lightweight and compatible with most modern Windows-based systems. ism v6 version 6.3 download
If you need Indian language typing for personal use and do not want to purchase a license for ISM V6, consider these free alternatives developed by C-DAC: Unofficial Docker images exist, but the vendor does