According to the International Telecommunication Union there were an estimated 5.3 billion subscriptions globally by 2010. As they have now become an essential part of business, commerce and society it has become extremely important for us to know the health hazards caused by them.Most phones emit radio signals at Specific Absorption Rate levels of between 0.5-1W/kg. SAR is a measure of rate of radio energy absorption in body tissue. The SAR limit recommended by International Commission of Non Ionizing Radiation Protection is 2 W/kg2. There is a consistency seen between the RF radiations and the health problems like dizziness, fatigue, headache, sleep disturbances, impairment of short term memory, an increase in frequency of seizures in epileptic children, brain tumors and hypertension. Many studies have been done in other countries regarding the health hazards due to cell phones but data from our country is lacking. This cross sectional study was conducted in Maulana Azad Medical College and the associated Lok Nayak Hospital. Patients coming to OPD and their attendants were interviewed. Students and hospital staff were also undertaken in the study.A total of 50 mobile phone users and 50 non mobile phone users were undertaken in the study. Extensive mobile users: defined as those using mobile phones for more than 4 years and at least one hour a day.