In this modern world communication plays a very important role and mobile phones play a vital role in the field of communication. In India regardless of the income group mobile phones can be seen in each and every hand. Even children are not left untouched with the aura of mobile phones. A major point of argument nowadays is whether mobile phone is a boon or bane especially in the case of kids? Mobile phones have various side effects on physical health of children like children are especially at risk when it comes to negative effects of blue light exposure, lack of physical activity is also seen in case of kids which leads to obesity in them. Mobile phones also affect mental health of the kids. Various studies show that children who use mobile phones have a possibility of developing nonmalignant tumor in brain and ear. Not only this mobile phones also distract the academics of children and they face problem to concentrate. Among the kids some behavioral problems like aggressive behavior and mood swings are also seen who use mobile phones a lot.