TharuChat: Bootstrapping Large Language Models for a Low-Resource Language via Synthetic Data and Human Validation

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Research International Source checked
Source
arXiv
Published
17 Mar 2026
Authors
Prajwal Panth, Agniva Maiti

Excerpt from source

The rapid proliferation of Large Language Models (LLMs) has created a profound digital divide, effectively excluding indigenous languages of the Global South from the AI revolution. The Tharu language, an Indo-Aryan vernacular spoken by approximately 1.7 million people across the Terai belt of Nepal and India, exemplifies this crisis. Despite a rich oral tradition, Tharu suffers from severe data scarcity and linguistic fragmentation, causing state-of-the-art multilingual models to routinely "hallucinate" or default to dominant high-resource neighbors like Hindi and Nepali due to contamination…

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