Dear Kartik,
Muster Roll is actually the Register of Employee Data which is usually kept in the Factory or Establishment. It usually consist of the following:
(i) Name of Employee
(ii) Age
(iii) Sex
(iv) Date of Joining
(v) Roll/Employee number
(vi) Type of employment: Regular/Contract/Casual/Badli etc
(vii) Category(Designation): Management/Supervisor/Skilled/Semi Skilled/Unskilled
(viii) Rate of Pay
(ix) Shift (if applicable)
(x) Attendance
The above is illustative and not exhaustive.The Muster Roll has statutory importance and is generally kept in the custody of Personnel Department and is regarded as a valid document for inspection by Statutory Authorities like Factory Inspector, Labour Inspector, ect.
The total number of Employees for application of any Statute is based on this Record.
Regards,
SC