Hii friend I am vicky and in my family 5 members are using this tata docomo sim card but when you gone for long distance your tata docomo network will be disappear that is the fault of tata docomo company so they should to work for this problem it’s another big problem is customer care service a user can be call customer only one time in full 24 hours but customers always help users after all problems and reports is has best call rates and best recharge offers