I am not HR, but hiring manager. As long as its within my hiring budget, I dont care how high is the celery requested by a good candidate and I wouldn't even think that candidate gonna forge the slip.

However, in the event, that the candidate did forge it, considering he/she will start working in March, there will already be 2 PCB at least? So when
payrolll need the candidate to fill PCB/TP3 (1/2020) for next year income tax. You see there la either the pcb tally or not. I dont think candidate have balls to cheat LHDN form.

This is correct. Even if you call former HR, quite low change HR gonna disclosed it. Now most company big company bank call to verify income also HR/payroll will ask consent from the employee to release info.

However all that does not apply in cinabeng company.