Dr Y K Lahir got M Sc and Ph D degrees and DHE diploma from university of Bombay (now University of Mumbai). Currently he is *Visiting faculty, Department of Biophysics, Vidyanagari, University of Mumbai, Mumbai-400098, teaching M Sc-I and M Sc-II students; *Visiting faculty, Department of Biological Science, Biological/Chemical Sciences, NMIMS, SCHOOL OF SCIENCE, (Deemed to be university) Shri C. B. Research, Vile Parle (W), Mumbai-400056; *Visiting faculty, Department of Environmental Sciences, Institute of Science, (Autonomous institute), Mumbai-400032 ; *Visiting faculty, Department of Zoology, Thakur College, Kandivli (E), Mumbai 400101, (Mumbai University), He has been teaching for 39 years.
He has authored three books on toxicology, (book on nanotoxicity under preparation) 35 research papers, 16 review articles and one chapter on graphene as drug carrier.