i alreday ask this question but i do not get satisfication bcoz may be i dont understand to u(all friends what i exactly want), i want to free cms , for manage online catalog for examaple visit this website (http://catalogs.indiamart.com/) i want to post , manage category from my website can any one about this type of cms?
Most of the open source (free) CMS will allow you to create a site like that. You might want to head over to http://www.opensourcecms.com and see which CMS you like most.