Here I am going to share a simple trick for block your enemy sim card,Blocking a sim card is too simple. What you have to do is just enter the below code in the desired phone **04*3814*7529*68243# Entering of above code will ask you to enter the PUK code.To solve this issue just call customer care and get your PUK code. Note:Entering of invalid PUK will cause permanent blocking of your SIM!
