Sir, I worked in an international company my nature is very sensitive & fearful. Many of my friends try to hurt me like making fun of me. I always fear to have company with them I don’t know what to do how to avoid them. I don’t reply to them but the thing is that if I don’t reply the thing will go on & on. Do I be like them or search another job because my nature is not to hurt anybody like other people do?

Changing of job is certainly not a solution. You have to become practical and answer them in their language. This may sound difficult to you but even your attempt of doing so will improve their attitude towards you. Let them know that you do not like them making your fun and will not tolerate it by just ignoring or keeping silent. Initially they may show their resistance by making more fun but on long run your message will be delivered to them.