I think having done an MBA, you need to be confident because of the knowledge base that you have. Secondly, interact with other HRs like HR FORUMS and join in HR association. In that regard,you will be able to share knowledge and improve your network.
Coming back to your question, start with Payroll and statutory processes, recruitment procedures and do have HR templates to make you start working.
Above all, keep in touch with CiteHr friends!!!
Regards,
salim