Actually, The phone belongs to one of my friend. He bought it from a shop and was using it for 6 months till now. I don't have knowledge about iPhone because i am android user.. That's why i posted here..
Now, we didn't know who was using it before. We went to the shop and asked about this phone and who was using it.. We got nothing but at last somehow we got the ID and the password. But, damn it was deactivated and i can't do anything now...
Hope there is some way to activate it now..