While I was transferring my sim to this and that phone as it was delaying to give some messages, we thought that the phone is not working. While doing so my sim started showing no sim card when i put in other phones. So i bought a new number phone and put the sim in that phone but it is still not working and my sim card is registered in someone else's name who I am unable to contact and the airtel service says they cannot change sim without that person's adhaar card. Now I am on a fix as my number is registered in all important places and I am having problem getting any important messages What to do. Please help. I am in great problem. Please share some of your valuable tips. Thanks and regards.