Dr A. Preeti is a microbiologist with a keen interest in the unculturable microbial diversity. During her doctoral studies at Madurai Kamaraj University, Tamil Nadu, India she explored the potential of human oral microbiome. Using 454 pyrosequencing technology she studied the bacterial link between diabetes and periodontitis. The results provided an insight to the changes in oral microbial population responsible for disease predisposition. Also, by functional screening of human oral metagenomic libraries she identified a lipase with novel properties and a novel antibacterial protein showing narrow spectrum antagonistic activity. She has received many awards including the INSPIRE fellowship by Department of Science and Technology, Government of India, and a Commonwealth Scholarship by the Commonwealth Scholarship Commission in United Kingdom. She is serving as reviewer for renowned international journals and is a member of Indian Science Congress Association. She has authored and co-authored journal articles and book chapter in peer-reviewed publications, and is the co-editor of a book on ‘Omics’ with Springer Nature. Her fascination for the meta world has driven her to further pursue metagenomics. Presently she is working as Assistant Professor in Amity University, Noida, India. Here, apart from teaching graduate and undergraduate students she also studies pristine environments for development of newer antimicrobials.