Delivered a special lecture on "Linguist Shahidullah" invited by Bangla Academy, Dhaka held on 14th July 2019.

Presented a paper on "Bengali Writing system: An Alpha-Syllabary system with a phonological and orthographical mismatch" at the workshop on Spelling Acquisition to phonological, morphological, and syntactic structure across languages organized by ELN Training School, Universite DU Luxembourg, Luxembourg held on 03-06 April 2019.

Presented a paper on "The application of linguistics to design tools in the field of speech and language pathology" in the International Seminar on Exigency in the field of Speech and Language Pathology in India organized by the Indian Institute of Advanced Study (IIAS), Simla, India 07-09 May 2018

Presented a poster on "Theory of Mind (ToM) and identifying the nature of emotional expression performed by Bengali children with Down syndrome" at the 1st India International Down Syndrome Conference (IIDSC), held in Delhi, India on 09-10th September 2017 (Co-author Tawhida Jahan).

Presented a paper on "Language Policy and Orthography: Debate in Eastern Indian and Bangladesh" in the International Scientific Conference Sustainable Multilingualism 2017 organized by Vytautas Magnus University, Lithuania on 26/05/17.

Presented a poster on "The Input Hypothesis and cognitive approach to L2 acquisition: A study of vocabulary acquisition by Bengali children" in the International Symposium Second Language Acquisition and Teaching organized by University Paris 8, Paris, France on 18-19th May 2017 (co-author Tawhida Jahan).

Presented a paper on "Language constructs men's reality: A critical review" at the training program on Gender Excellence in Bangladesh jointly organized by the Department of Woman and Gender Studies, University of Dhaka, and Institute Interdisciplinary Gender Research and Diversity, University of Applied Sciences, Kiel, Germany held at the Senate Bhaban, the University of Dhaka on May, 07-14 2012.

Presented a paper on "Prototype and the nature of categorization of Bengali emblems" in the 2nd International Congress of Bengal Studies organized by the University of Dhaka and Bangla Academy, Dhaka held at the Senate Bhaban, the University of Dhaka on 17-20 December 2011

Presented a paper on "Religious values and the nature of cognitive control during co-speech left-hand gestures produced by Bengali speaking people: A study of left-hand taboo" as one of 18 best paper candidate at 4th International Conference on "Gesture Evolution, brain and linguistic structure" organized by the International Society of Gesture Studies (ISGS) held at European University Viadrina Frankfurt/Oder, Germany on July 25-30 July 2010.

Presented a paper on "The nature of opaque orthography and techniques of reading literacy of Bengali children: A psycholinguistics interpretation" at the workshop on Typology of Writing System by Sixth International on Writing System held at the German Department, University of Braunschweig, Germany on 18-19th September 2008.

Presented a paper on "Narrative consists of more than words: the nature of hand gesture production by narrators" at the Ph.D. course on Narrative in Interaction-from structure to practice held by GradEast and University of Roskilde, Denmark on 10-13th August 2008.

Presented a paper on "Hand gesture as a means of nonverbal communication: A closer look into Bengali speaking people" in the 9th World Congress on Semiotics held in Helsinki, Finland on 11-17th June 2007.

Presented a paper on "Bengali native sign for cultural communication: An interpretation of human interaction" in the International Semiotics and Structural Studies held in Imatra, Finland on 3-9 June 2004.

Presented a paper on "Globalization and changing language teaching policy: Querying the pedagogical culture of Bangladesh" at the UNESCO Conference organized by the University of Jyvaskyla, Finland on 15-18th June 2003.

Presented a paper on Woman body as a color measuring text: A signification of Bengali culture at International Conference on Semiotics and Structural Studies in Imatra, Finland on 07-13th June 2003.

Presented a paper on the Study of Semiotics in Bangladesh: prospects and necessity at the International Conference Semiotics and Structural Studies in Imatra, Finland on 7-16th June 2002.