There has been an ongoing debate on the dearth of philosophical considerations in HRM research. In response, a dire need of philosophical discussions and its link to methodological adaptation has been stressed by many past eminent scholars in the recent history. The present paper aims to fulfill this important requirement as it has immense contribution for future research, making a lot of philosophical confusions clear. A critical review of literature on both HRM and philosophical strands was carried out to show how diverse philosophical assumptions/stances are linked with diverse methodological adaptations. This paper concludes highlighting the premise that methodology in any research is not researchers free will and instead it is mainly guided by their perceptions about the nature of reality (Ontology) and the nature of knowledge (Epistemology).