Tripodal rotation of Cr(CO)3 moiety complexed to mono, di and tri phosphabenzenes have been studied at B3LYP/LANL2DZ level. In most cases, the conformational minima has preferential orientation of Cr(CO)3 moiety in the anti eclipsed position relative to majority of the phosphorus atoms in the ring although instances of staggered minima in 12DPBC, 14DPBC & 124TPBC have also been reported. We observed large torsional barrier of 6.49kcal/mol (36 folds relative to benzene chromiumtricarbonyl complexes) for 1,3,5-triphosphabenzene chromiumtricarbonyl complex. Based on our observations through NBO analysis, we have attempted to provide interesting insights on conformational preferences and the hyperconjugative stabilisations (bonding/backbonding interactions) that decide these conformational preferences and torsional barrier. Furthermore, we also noted correlation between activation hardness and rotational barrier which explains the unique conformation assumed by 1,3,5-triphosphabenzene chromium tricarbonyl complex.