Background: Consumption of beverages has increased exponentially among youth. The aim of present study is to evaluate the cariogenicity of various beverages. Methods: Eighty subjects were divided into caries free (subjects having DMFT=0) and caries active groups (subjects having DMFT>0). Each group was further equally divided in five groups randomly: cola drink (CD), fruit juice (FJ), energy drink (ED), diet cola (DC) and non-sugar fruit juice (NSFJ). Acidity of the drink and plaque pH variations at particular time intervals (1, 5, 10, 15 and 30 minutes) was measured using digital pH meter. Comparisons were done using ANOVA and Turkey’s post hoc test by SPSS version 12. Results: All beverages showed fall in pH initially. Among them, cola and energy drink emerged to be highly cariogenic as they could not recover from critical pH when tested next at 5 minute interval. When comparing all caries free subgroups, significant results were reported at 1, 5 and 15 minutes with p values of 0.00, 0.01 and 0.03 respectively. While comparing all caries active subgroups, significant results were reported at 1, 5 and 10 minutes with p values of 0.03, 0.00 and 0.00 respectively. While comparing mean plaque pH values of caries free and caries active subgroup, highly significant differences were found for cola and energy drink group. Conclusion: The beverages and fruit juices seem to be having significant cariogenic potential. Emphasis should be on reduced consumption of these drinks. School based intervention programs are recommended.