Can anybody help me wit the difference btw HRM and Personnel mgt?

There's no operational difference in the terms. HRM is just a terminological upgrade to the term Personnel Mgt but also in trying to make HR relevant to the organisation Mgt Theorists decided that for HRM to be effective it must operate at the Board room level having direct impact on HR policies instead of being an office that dealt with recruitment and staff salary issues.

Other organisations have also rebranded the HR Manager as the People and Organisations Manager