Dear Gauravbdwj,
If your package is Cost to Company (CTC), then Bonus, PF, and Gratuity are part of your salary structure. However, PL is not part of the salary structure; it is mandatory under the Factories Act that for 20 days of work, 1 day of leave should be granted to employees.
Therefore, PL is a different component, but Bonus, PF, and Gratuity are part of the salary if the company is offering you the package under CTC structure.
Regards,
Deepak Kundu
DM-HRM