The experiment was conducted to evaluate the stability of Cytoplasmic Genic Male Sterility of different male sterile lines and their maintainers for pollen and spikelet fertility. A total of thirty five CMS lines and twenty four maintainer lines were raised during June 2003. Of the thirty five CMS lines, DRR 6A, DRR 7A, PMS 17 A, APMS 6A, COMS 14A, COMS 15 A, KCMS 13 A, RTN 2 A, RTN 3 A, RTN 6A, RTN 11 A, RTN 13 A, RTN 14 A, RTN 17A, RTN 18 A and IR 68888A were completely pollen sterile. For all other CMS lines spikelet fertility ranged from 0.5 per cent to 6.5 per cent. The CMS lines DRR 3A, DRR 6A, DRR 7A, PMS 17A, COMS 14 A, COMS 15 A, KCMS 13A, RTN 2 A, RTN 3A, RTN 6A, RTN 13 A, RTN 18 A, IR 58025 A and IR 68888A were exhibited above 70 per cent of panicle exsertion. Twenty two sterile CMS lines had more than 35 per cent out crossing. Stigma exsertion of more than 30 per cent was observed for the CMS lines DRR 3A, DRR 5A, DRR 6A, DRR 7A, PMS 17A, COMS 14A, COMS 15A, Pusa 3A, KCMS 13A, IR 75601A, RTN 2A, RTN 3A, RTN 6A, RTN 17A, RTN 18A and IR 68888A. The CMS lines viz., DRR6A, DRR7A, PMS17A, COMS14A, COMS15A, RTN 2 A, RTN 3A, RTN 6A, RTN 18A, IR 68888A were found promising for the characters viz., pollen sterility, panicle exsertion, stigma exsertion, natural out crossing and medium duration which offer scope of utilizing these male sterile lines for the development of three line hybrid with high yield in rice.