Gram Vaani ASR Challenge on spontaneous telephone speech recordings in regional variations of Hindi. - Anish Bhanushali; Grant Bridgman; Deekshitha G; Prasanta Kumar Ghosh; Pratik Kumar; Saurabh Kumar; Adithya Raj Kolladath; Nithya Ravi; Aaditeshwar Seth; Ashish Seth; Abhayjeet Singh; Vrunda N. Sukhadia; et al. (INTERSPEECH, 2022)