The IASNLP 2011 workshop turned out to be a good opportunity to learn a little bit about speech research.
(See the article: http://www.aiaioo.com/cms/index.php?id=28)
Here are two of the faculty who work on speech at IIIT-H:
1. Yegnanarayana: http://speech.iiit.ac.in/~yegna (many publications on signal processing, noise cancellation, feature extraction, ANNs).
2. Kishore Prahallad: http://www.iiit.net/people/faculty/kishore (speech synthesis and spoken dialog systems)
IIIT-H also has research on grammar and translation.
Dr. Rajeev Sangal (http://www.iiit.net/~sangal/) works on Dependency Parsing, Transfer Based Machine Translation and Anaphora Resolution.