I heard from most of the people that in gulf one can not get a job without having any experiance,can someone tell me how much experiance is necessary?

Getting te job is not the issue its depends on experience and the salary expectations. As per my knowledge if a person is talented but new in gulf he or she can get job easily but on low salary but if te expectations are high than its defficult to get and depends on luck and your move. 

Experience is important but still you can get a job in Gulf without experience, mostly the fresh graduate. There is no issue as per my opinion unless you understood and have interested to the job will be assigned to you.

first of all, i think at least  3 years experiences are needed for doing job well.

i think it depends on what kind of job you are looking for and who is helping you to achieve that goal. first find what you are looking for and ask for help in securing the experience needed 

Minimum atleast 5 Years of Experience in the relevant field is mandatory

at least one-year experience

without experience you can not get haired