Difference Between Letter Of Intent, Offer Letter And Appointment Letter

Thanks Avinash & Gilli. Good explanations.
However other than the appointment letter which is a legally binding contract, to what extent are the other two forms of letters legally binding.
What if an offer is made, accepted and then retracted by either one of the parties?
How legally binding is a letter of intent?
regards
Rosettee

sir
i did not take a copy for my self of letter of intent when i signed it
is it ok, or is there any problem i am in 7th semester and i have been placed in a IT company.
is it important to take a copy for yourself for future reference.??
is it ok or not?

Hello Respected seniors,
can anybody tell me after receiving offer letter employer (X) want signed copy as receive proof from employee (Y).
at this moment can employer (X) legally bind with employee (Y)?
pls reply.
regd
Machhindra

LOI means Both Parties(Employer and Employee) are willing for contract.
After the mutual understanding between employer and employee company offer the job and in accordance company also issue the job offer letter.
Job offer letter is delivered to the selected candidate and on the base of acceptance of candidates HR department issue the appointment letter.

A letter of intent is similar to cover letter, as it is provided by the candidate to the company, and it defines the experience and qualifications of the candidate.
Offer letter is given to the people who have cleared all the selection rounds and finally selected for that particular job. It contains their designation, Salary structure, rules and regulations of the organisation etc.
Appointment letter, is proof of appointment that a person is accepting the offer and ready to work for the company and agree with the terms and conditions of the company.