The recently introduced microwave induced chemical etching (MICE) has been found to be a fast and effective etching technique for CR-39 detector. In the present work, the MICE technique was used to develop the neutron induced recoil tracks in CR-39 detectors. Special attention was paid in carrying out a systematic investigation to study the effect of etchant concentration and microwave power on the development of tracks and various track parameters. NaOH solution of different concentrations, viz. 3–8 N was tested at 300, 450, 600 and 900 W of microwave power. Temperature profiles for 200 ml solution of each concentration were generated to maintain a fixed operating condition for all concentrations at each microwave power. The bulk etch rate was found to increase with the microwave power as well as with the etchant concentration. Empirical relations were established to relate the variation of bulk etch rate with microwave power and etchant concentration.