In the present work we have measured pre- and post-scission neutron multiplicities (M_pre and M_post) from two compound nuclei, namely ^192,202Po populated by ⁴⁸Ti + ^144,154Sm systems at 72 MeV of excitation energy using the National Array of Neutron Detectors (NAND) facility at IUAC, New Delhi. Statistical model analysis has been performed for ⁴⁸Ti + ^144,154Sm along with already existing data for ¹²C + ¹⁹⁴Pt and ¹⁸O + ¹⁹²Os covering compound nuclei of Po (^{192,202,206,210}Po)with neutron number N_C = 108, 118, 122, and 126 respectively. Variation of experimental M_pre with N/Z of the compound nucleus does not showany special feature at neutron shell closure (N_C = 126) at compound nucleus excitation energy around 72 MeV considered here. In particular, it is found that dissipation alone is unable to reproduce the experimental M_pre for ¹⁹²Po, and the role of entrance channel  dynamics should be considered in future works.