The current research was designed to assess the effect of attachment styles on perceived loneliness among university students during the valentine’s week. A sample of 137 students was drawn from Lovely Professional University, Phagwara, India with the age range of 18-24 years (55.5%) and 25-31 years (44.5%) respectively. Among the sample, 32.8% were males and 67.2% were females. Among the sample, divisions pertaining to the relationship status were as follows: 45.3% students were single, 40.9% students were mingled and 13.9% students were in a complicated romantic situation. Among the sample, divisions pertaining to the educational qualification were as follows: 57.7% of the students were of Bachelors level and 42.3% of the students were of Masters level. The Experiences in Close Relationships – Short form (ECR-S) by Wei, Russell, Mallinckrodt, & Vogel (2007) and Perceived Loneliness Scale by Praveen Kumar Jha (1997) were employed in this study as instruments to collect psychometric data. The statistical analysis of data involved: Mean, Standard Deviation, Frequency distribution, t-test, correlation analysis and regression analysis. The findings showed that attachment whole showed significant positive correlation with perceived loneliness. The findings showed that there were significant mean differences in Attachment style [46.516, 34.554], attachment avoidance [20.47, 13.00] and attachment anxiety[26.05, 21.55] between single and mingled people respectively. The findings also showed that there were significant mean differences in attachment avoidance [18.58, 15.34] and Attachment style[43.263, 38.393] between the two age groups of 18-24 year olds and 25-31 year olds respectively. The results also revealed that Attachment style contributes (r2=.201) in perceived loneliness