Health education on NCDs and behavioral risk factors was delivered through motivation and observational learning session.

Control group received session on carrier guidance.

In this health education intervention, emphasis is given on evoking adolescents' internal desire to change, supporting self-efficacy to be changed, guiding self-regulatory ways along with facilitating desired changing process by empowering them with choices and skills.

Knowledge about non-communicable diseases related risk behaviors such as dietary habit, physical activity, smoking and alcohol will be measured by 25 knowledge measuring questions scoring 54 in total. Answer to the questions will be regarded as correct or incorrect based on information from standard medical textbooks and guidelines. Difference of knowledge score from pre-intervention to post-intervention survey will be measured.

Attitude towards the risk behaviors- dietary habit, physical activity, smoking and alcohol will be measured by nine attitude measuring questions in a Likert Scale ranging from one to three. Change in attitude score from pre-intervention to post-intervention survey will be measured.

Practice will be measured as follows-

1. Dietary habit: Presence of at least two of the following four habits will be accounted as having dietary risk behavior.

   i. Inadequate fruit consumption: Less than five servings of fruits per day ii. Inadequate vegetable consumption: Less than five servings of vegetables per day iii. Excessive salt consumption: Taking extra or raw salt during every meal iv. Sugar Sweetened Beverage (SSB) consumption: Consuming SSB more than three days per week

2. Physical activity: Not meeting 60 minutes physical activity of moderate intensity per day will be regarded as physically inactive.

3. Smoking and alcohol: Smoking regularly in the last 30 days or exposing to passive smoking more than three days per week will be accounted as in risk of smoking. Any amount of alcohol intake or any substance abuse in the last 30 days will be regarded as at risk.

Change in practice from pre-intervention to post-intervention survey will be measured.

The ratio of body weight in kilogram and the height in meter square will be considered as BMI. Classification of BMI will be done as following- Underweight (Less than 18.5); Normal weight (18.5-24.9); Overweight (25.0-29.9) and Obese (More than 30.0)