Purpose: To assess the practices and behaviour among Betel nut users in Ghaziabad and to detect the clinically associated oral mucosal lesions and conditions. Materials and Methods: A community-based survey was conducted in Ghaziabad among 332 betel nut users. Data on betel nut use was obtained through a self-administered questionnaire. Oral mucosal lesions and conditions were recorded using WHO criteria. Results: Out of 332 betel nut users, 32.8% consumed Gutkha. 62.3% users used betel nut with tobacco. Most of the study population started chewing betel nut because of peer pressure and the habit started at the workplace or school. A majority found that there was no physical discomfort due to the habit. The significant oral diseases detected were oral leukoplakia in 11.7% and oral submucous fibrosis in 6.1% of individuals. Conclusion: The findings of the present study revealed that 74.7% of the participants were current chewers. 30.4% of all participants had oral mucosal lesions and conditions. Schlagwörter: betel nut, behaviour, oral mucosal lesion and conditions, practices