17May2026

Family reunion@Flat (Raheja Vista,B2002)of smt Aparna&late Pushpak..from left..Aditi,Raunak with baby Arunim(b.5July2023),Smt Dipali,Prodipto,Prosanto,Deepti with Adi(b.15May2021).

Raunak is the worthy son of his illustrious father Pushpak. After IIT education he persued higher studies in USA.. got doctorate at Stanford,then did postdoc at Cambridge -UK.Though he had a very lucrative future in AI in western countries  , he decided to come back to India to teach AI.He joined IIT- Delhi three years ago. His wife Aditi is also a researcher at IIT- Bombay.
Raunak is the latest luminary in the family.I am sure  his name will be on the lips of people one day.

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 5 Oct2025..Pushpak  leaves for his heavenly abode..long live Pushpak

এই বংশের একজন বিশ্ব বিখ্যাত কম্পিউটার সাইন্টিস্ট... শ্রী পুষ্পকের অকাল প্রয়াণ..Pushpak(Rana),my nephew is no more...Pushpak Bhattacharyya (3 July 1962 – 5 October 2025 was an Indian computer scientist and professor in the Department of Computer Science and Engineering at the IIT Bombay. He served as the Director of the IIT Patna from 2015 to 2021.

Known for...Director at IIT Patna, Machine translation, Word-sense disambiguation, Sentiment analysis, Psycholinguistics, IndoWordNet, Information Retrieval

Scientific career..Fields..Computer science, Artificial Intelligence, Natural Language Processing

At the inauguration of the Nilekani Centre at AI4Bharat, IIT Madras, Nandan Nilekani, Co-founder and Non-Executive Chairman of Infosys, referred to Bhattacharyya as the "Godfather of Indian NLP".

Bhattacharyya’s research areas included Natural language processing, Artificial intelligence, Machine learning, Psycholinguistics, Eye tracking, and Information retrieval. He made contributions to the development of multilingual lexical databases such as IndoWordNet and other projects related to machine translation and computational linguistics.

He authored and co-authored multiple academic works, including Investigations in Computational Sarcasm (with Aditya Joshi),[8] Cognitively Inspired Natural Language Processing: An Investigation Based on Eye Tracking (with Abhijit Mishra), and Machine Translation and Transliteration of Low Resource Related Languages (with Anoop Kunchukuttan).

Over his career, Bhattacharyya published more than 350 research papers in journals and conference proceedings and supervised over 300 undergraduate, master’s, and doctoral students. His projects often addressed computational challenges for Indian languages, such as developing wordnets, building translation systems for low-resource languages, and studying cognitive aspects of language processing.

He also led government- and industry-funded research initiatives supported by organizations including IBM, Microsoft, Yahoo, and the United Nations.