The literature suggests that employees' perceptions about organisational inputs play an important role in determining subsequent reactions and, inter alia, the long term employment relations. The build-up of perceptions is predominantly guided by employees' positive mental disposition. The present study takes a step forward in testing this notion. The study explores the role of perceived organisational support (POS) in developing organisational trust and organisational commitment and the moderating effect of psychological capital therein. A self-reported questionnaire survey was conducted among 368 junior and mid-level IT executives from India. POS was found to be positively related to the aforementioned variables and the relationships witnessed attenuation at higher levels of psychological capital. Theoretical and practical implications of these findings are discussed and a future course of research is suggested.