Compulsory issuance of appointment letter: What does it mean for employees?

An appointment letter would provide a sort of documentary evidence and would help them claim their rights and benefits due to employees. An employer would be required to mention details such as salary, working hours etc. in the appointment letter.

from Wealth-Economic Times https://economictimes.indiatimes.com/wealth/personal-finance-news/compulsory-issuance-of-appointment-letter-what-does-it-mean-for-employees/articleshow/75751154.cms