Karnataka Sabdanusasana
It is believed that Bhattakalanka Deva may have undertaken the work of writing exhaustively on old-Kannada grammar as there may have existed some contempt from Sanskrit scholars of the day towards Kannada language despite its rich literary tradition. His writing is the third authoritative grammar on old-Kannada, the first of which was authored by Nagavarma II in the mid-12th century and the second by Keshiraja in the mid-13th century. The grammar containing 592 sutras is subdivided into 4 chapters (padas) and each sutra has a glossary and a lengthy commentary. The authorship of entire work has been settled with the full credit going to Bhattakalanka Deva.
The Karnataka Sabdanusasana is modelled mostly on the earlier Sanskrit grammars written by Pāṇini, Sakatayana, Saravarma, Pujyapada and others, though some sutras have been borrowed from earlier Kannada grammatical works; one or two sutras from the Karnataka Bhashabhushana by Nagavarma II and about fifteen from Shabdamanidarpana by Kesiraja. The first chapter (up to 101 sutras) consists of euphonic combinations, technical words, signs of nouns and verbs, numbers and indeclinables. The second chapter (101–299 sutras) consists of gender classification of indigenous Kannada nouns and those inherited from Sanskrit (tadbhava–naturalised and samasamaskrita–non-naturalised). The third chapter (291–441 sutras) consists of compound words and the fourth chapter (442–592 sutras) focusses on verbal roots and verbal nouns.
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