Now-a-days mobile phone has become a device without which one cannot live. There are some people who are always glued to their phones, constantly checking it throughout the day. This habit has turned into such an obsession that a new modern-day phobia has been emerged, the fear related to lose the reach of information and communication by losing access to mobile phone is called no mobile phone phobia, in short Nomophobia. This study focuses on this trending phobia by investigating the prevalence and nature of it among young undergraduate students. It aims to identify the level of Nomophobia among the students of Bangladesh University of Professionals (BUP) and finds some variables influencing the traits. A quantitative survey on 132 undergraduates has been done based on a scientific Nomophobia questionnaire (NMP-Q). The result found nearly 70% students with moderate level of Nomophobia. It has also found that age, gender and duration of phone usage has direct effect on the students’ nomophobic behavior.