International Institute of Information Technology, Hyderabad · IIIT-H · KCIS · Directory
LTRC Language Technologies Research Centre
IIIT Hyderabad
Gachibowli, Telangana

Language Technologies Research Centre · Since 1999

Where Language
Meets Intelligence

LTRC is a leading research centre at IIIT Hyderabad dedicated to advancing natural language processing, speech technologies, machine translation, and information retrieval — with a deep commitment to India's linguistic diversity.

I

Foundational Research in NLP & Speech

Advancing the science of how machines understand and generate human language — across syntax, semantics, discourse, and multilingual settings.

II

Inclusive Technology for India's Languages

Creating open tools, corpora, and systems that serve the billion+ speakers of India's diverse linguistic landscape — not just dominant languages.

III

Education & Open Scholarship

Training the next generation of NLP researchers through rigorous courses, the IASNLP school, and open publication of data and models.

V
Prof. Vasudeva Varma
Faculty · Director, LTRC
Information Retrieval
R
Prof. Radhika Mamidi
Faculty
Pragmatics · NLG
K
Prof. Kishore Prahallad
Faculty
Speech Synthesis
S
Prof. Sobha Lalitha
Faculty
Anaphora · NLP
A
Anusha Iyer
PhD Researcher
Low-resource NLP
M
Mohammed Rafi
PhD Researcher
Machine Translation
P
Priya Suresh
MS Researcher
Discourse Analysis
View all members →
25+
Years of Research
12
Faculty & Staff
80+
PhD & MS Researchers
500+
Publications
Research Labs

Four labs, one mission

LTRC houses four specialised research groups, each tackling a distinct frontier of language technology — from classical Sanskrit to cutting-edge neural speech synthesis. Together they form a unified, collaborative research ecosystem.

Explore all labs →
🧠
NLP · Translation
MT-NLP Lab

Work spans syntax & parsing, semantics, word sense disambiguation, discourse, treebanking, and machine translation. Linguistic insight meets modern ML.

Learn more
📜
Classical · Heritage
Anusaaraka Lab

A fusion of Indian grammatical tradition and modern MT. Joint initiative with Chinmaya International Foundation and University of Hyderabad.

Learn more
🔊
Speech · Audio
Speech Processing Lab

Robust ASR, natural-sounding TTS, spoken information retrieval, and voice biometrics. Goal-oriented basic research at the signal–language frontier.

Learn more
🔍
IR · IE · Search
IREL Lab

Information Retrieval, Extraction, and Access for complex, multilingual information needs. Fundamental and applied research for real-world search systems.

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Publications

Research

Peer-reviewed publications, datasets, and open-source tools from across LTRC's labs — spanning NLP, speech, machine translation, and information retrieval.

2025
Cross-lingual Transfer for Extremely Low-Resource Dravidian NLP
ACL 2025 · Findings
2024
IndicBench: A Comprehensive Evaluation Suite for Indian Language Models
EMNLP 2024
2024
End-to-End Neural TTS for 12 Indian Languages
Interspeech 2024
2023
Anaphora Resolution in Classical Sanskrit Using Graph Neural Networks
COLING 2023
View all publications →
Courses & Training

Education

LTRC offers a rigorous curriculum in NLP and language technology, from undergraduate foundations to doctoral seminars. The annual IASNLP school is a globally attended training programme.

Foundations of Natural Language Processing
Morphology, parsing, semantics, and language modelling
UG / PG
Statistical & Neural Machine Translation
Phrase-based, attention, and transformer architectures
PG
Speech Technology
ASR, TTS, speaker recognition
PG
Information Retrieval & Extraction
Search, ranking, knowledge extraction
PG
IASNLP Summer School
Annual intensive, open to researchers worldwide
Annual
View all courses →
Upcoming
Jun 2025 IASNLP Summer School 2025
Apr 2025 LTRC Colloquium: Large Language Models for Indian Languages
Mar 2025 Workshop on Multilingual Speech Processing
Feb 2025 Talk: Prof. Pushpak Bhattacharyya, IIT Bombay
Ideas & Perspectives

Blog

Long-form writing from LTRC researchers — on NLP breakthroughs, the state of Indian language AI, and the future of human-language technology.

Feb '25
Why Low-Resource NLP Still Desperately Needs Linguists
Statistical and neural approaches have made huge strides, but without deep linguistic intuition, we keep hitting the same ceiling.
Nov '24
Lessons from Building a Production TTS System for Telugu
Scaling speech synthesis to a language with 90M speakers reveals gaps in both tooling and community infrastructure.
Sep '24
Sanskrit Computational Grammar: A Practical Primer for NLP Researchers
Classical grammarians solved problems that modern ML is only beginning to formalise. Here's what we can learn.
Read all posts →
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