Dear Khushboo,
You might have pressed on the "RAAZ" profile
profile1.jpg
Which shows the following options
profile2.jpg
and you might have click on the "Add RAAZ to your body list", this option make a list of your friend the xenoMED just like MSN or Yahho you can't chat with them but you will have easy while sending private message (PM).
You can add or remove it. If you add the user will be in your body list just like as I said MSN or Yahoo and if you remove he/she will not be in your body list.