Then compare it with what you see practically on the job.
Once you identify deficiencies in knowledge level, you can start making efforts to catch up and upgrade your knowledge and skills.
There are many courses in HR and related topics.But before you start applying for other courses, complete MBA first and then apply theory to practical job.
See the work of your HR team and discuss with them aspects of the job and learn,identify etc.
27th October 2018 From India, Pune