Relapse is a multi-factorial phenomenon and most likely to result from a combination of various factors. This study was conducted to determine factors associated with relapse of drinking in patients who underwent deaddiction treatment programme. Material and Methods: This is a retrospective cohort study was done in patients who were admitted for in-patient deaddiction care programme between September 2017 and February 2018. The in-patient charts of the subjects were retrieved from the medical records department. The SADQ score at admission, CIWA-Ar score and The Brief Substance Craving Score at the time of discharge were taken from the record. Results: A total of 70 patients were recruited and the mean age of participant was 41.27 ± 11.07 years. At the end of 1 year the mean total no. of lapses was 9.9 ± 12.67 in the study population and the mean total number of relapses was 0.84 ± 0.94. The mean duration of complete abstinence last 1 year (CDA) in days was 272.43 ± 109.12. The mean no. of readmissions for de-addiction last 1 year was 0.23 ± 0.57 in the study population. Univariate analysis shows age at first drink in years, total duration of drinking in months and use of disulfiram and graduation as educational status are associated with higher odds of relapse. However, multiple regression model showed no statistically significant association. Conclusion: The complete abstinence was seen only in 31.43% of the population

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