Salary Break Up In Appoitment Letter

There is nothing illegal per se in putting salary breakup in annexe. It's not right and fair to refuse to give it tomthe employee concerned. But once the employee signs the letter saying he has got the annexure, there is little he can do against the company.
At best he can complain against the company. Such a complain will probably be a year later, when he wants to leave or something. And at that time the complain will be a waste of time. If he can prove that it was indeed held back, it will be a different matter.
You should ins tread consider whether it's a good idea to work for such a company

Dear Aparajita,
The general notion is that many companies due give you salary break-up when the candidate receives his/her appointment letter. If you are stating that XYZ company has not given any appointment letter than no legal action can be taken against him that as per my knowledge because it can be an internal policy of that XYZ company.
Regards, Derek Gomes

Dear Aparajita,
In many companies there is a practice that the offer letter only tells about the selection of candidate for the position and specifies the tentative date of the candidate's joining.
Appointment Letter is having a legal identity. It talks about the terms of the employment of the employee. The terms mentioned in the appointment letter are binding on both employer as well as employee. Any contravention of the terms of employment mentioned in the appointment letter can be challanged in the court of law. Hence if any company is specifying the salary breakup in the appointment letter and not providing it to the employee then it is illegal as well it put very adverse impact about the company's image on the employees.
Best regards,
Dinesh Shitole, Pune

Dear All,
Request you to please post me the PERFORMANCE APPRAISAL (Yearly) format immediately.
Regards,
Murali

Dear All,
How could employment contract would be complete with out mentioning all terms and conditions.

I have a question regarding salary break up, can salary break up can be given in contract letter also? /Kindly revert back as soon as possible.
Regards