Hi Deepthi!! 
Well one one cant directly become HR manager as it requires lots of intensive organisation learning procedures & Should have relevent experience too In HR domain
Qualification one Should have related to this profile is
Minimum One should be graduate with Hr specialisation as it will be added advantage
Secondly Post graduate that is MBA in HR from Top B schools will be highly advantage for same. Apart from that  can take sde course certification which is voluntary ..
Hope its helps
Any queries please revert