I have an airtel sim but I do not use it because of airtel very bad services and offers 2 months ago I took 1 month 3g internet plan and my internet speed was the worse than 2g I was really disappointed so I stopped using airtel they took my money and did not give anything in retrune very bad service when I try to call customer care they do not receive my call no good offers no internet speed no plans using airtel service is like throwing money in garbage totally useless I will never use airtel in future never