Introduction:
A total of 1.5 million people in Sri Lanka smoke 11 million cigarettes daily. In 2015, LKR 106.5 Billion, indicates the economic burden of tobacco on Sri Lankan households. The estimated annual mortality from tobacco related illness is about 20000 deaths in Sri Lanka. Constructing site workers are more vulnerable to tobacco smoking as it is a common practice among them.

Objectives:
To reduce smoking behavior among constructing site workers by raising awareness on economic burden and health impacts of smoking through interactive discussions.

Methods:
This study was conducted with the purposively selected sample of 51 workers in a construction site in Anuradhapura district, Sri Lanka. Group discussions were carried out with them to improve their understanding on economic burden and health impacts of tobacco smoking. They were facilitated to calculate the annual burden of a person for cigarette use and it was compared with the amount of their unfulfilled essential basic needs. They were facilitated to compare the difference between lifestyles of cigarette company owners’ and tobacco users’ through discussions. Discussions were conducted about long term and short term health impacts of smoking using photographs and facilitated them to develop indicators to measure changes of their smoking behavior.

Results:
Ten workers out of 51 agreed to initiate intervention to reduce smoking in their work site. They suggested to maintain a "money box" to collect saved money from quitting cigarettes. Twenty people decided to quit their smoking behavior and ten people decided to decrease the number of cigarettes that they smoke daily. Developed indicators included the number of cigarettes they smoke during tea time, number of times forcing others to smoke, amount of money saved from quitting.

Conclusion(s):
Raising awareness on economic burden and health impacts of tobacco smoking through interactive group discussions is effective to reduce smoking among workers in the construction site.