AkhileshwarPrasad Shukla examines the Mourdhanya Desh Vidhan Vimarsh (मूर्धन्यादेशविधानविमर्श:), a Sanskrit-language critical investigation of the phonological and grammatical rules governing murdhanya (retroflex/cerebral) substitutions — a technical subject within the Paninian grammar tradition. Published by Bharatiya Vidya Sansthan, Varanasi.