Airtel
My sim card is using by some others

Sir,

i had taken an airtel sim from tamilnadu, some months back.

now iam in kerala. now the sim card is with me, also wen i called to that sim somebody is attending the call and also giving me missed calls. what should i do to get a solution for this problem. the sim is taken by submitting my id proof.

whay should i do to get the list of outgoing calls made from my sim?? pls reply