He has served as Director of Linguistic Studies Program and Acting Director of Cognitive Sciences at the university. He was also a Fellow at the Center for the Study of Popular Television at the S. I. Newhouse School of Public Communication. He is a recipient of the Chancellor’s Citation Award for excellence in research. He has published a number of books, articles and book chapters in the areas of bilingualism, multiculturalism, media (advertising) discourse, socio- and psycho-linguistics, and the structure and typology of English and South Asian languages (particularly Hindi, Urdu and Punjabi). He has been the recipient of a number of grants from the National Science Foundation, US Department of Education, American Council of Learned Societies, The Smithsonian Institution, Fulbright-Hays Faculty Research Abroad, Linguistic Society of America, and American Council for Learned Society, among others. He has held visiting professorships at a number of prestigious universities in North America, Japan, and India. He has also been a consultant to several academic, government, and business organizations.