The increase in Type 2 diabetes in Indian youth can be due to many underlying reasons:

1. Changing lifestyle: Increased urbanization has led to more sedentary lifestyles with less physical activity. Many young people are spending more time on computers, smartphones, and other electronic devices. This increased screen time has increased the risk of developing various diseases.
2. Unhealthy diet: Traditional diets are being replaced by diets high in fats, sugars, and refined carbohydrates, the westernized diets like cheeseburgers, frenchfries, pizza, pasta etc.  has refined carbs contributing to obesity and insulin resistance in children.
3. Socio-economic factors: With rapid economic growth and improved living standards have led to lifestyle changes that favor sedentary behavior and unhealthy eating patterns.These unhelthy eating habits can also be due to underlying stress and anxiety that can increase the risk of disease.
4. Obesity: Obesity is a major risk factor for type 2 diabetes. The prevalence of obesity among Indian youth has been rising due to poor dietary habits and lack of physical activity. The accumulation of fat around the abdomen is particularly associated with an increased risk of type 2 diabetes.

Other than the above listed factors, factors like genetic makeup, environmental factors, psychological factors are sometimes  also responsible for increase in Type 2 diabetes.