Introduction:
The World Health Organization (WHO) has estimated that smoking causes about 4 million deaths worldwide each year. This number is expected to exceed 8 millions by 2030. India is one of the largest consumer of tobacco in the world, producing a heavy burden of smoking-related diseases.

Objectives:
To assess the prevalence and determinants of tobacco use among migrant construction workers by using GATS India Survey Questionnaire.

Methods:
A cross-sectional descriptive study was done on 1400 construction workers in Kancheepuram district. They were selected by multistage random sampling by using the Global Adult Tobacco Survey India individual questionnaire.

Results:
A total of 1400 construction workers enrolled and completed the questionnaire. Among that 69% and 31% were male and female, respectively. The prevalence of current tobacco use was 44%, smokeless tobacco use was 29%, smoke tobacco use was 19% and alcohol consumption use 39%.

Conclusions:
The prevalence and determinants observed in the present study needs to further elucidate the role of various risk factors among the migrant workers. We recommend implementation of comprehensive targeted interventions addressing risk factors for smoking.