If you want to setup a new company in india than you should select the name of the company which is not contain any prohibited word and as well as the name is not similar to any existing company. for checking the name avilability of the company you should visit at www.mca21.gov.in. under such site you have an option of name avilabilty. after clicking on such link you can check the name avilabilty.
you can also visit on such link which is attached below:
http://www.mca.gov.in/DCAPortalWeb/dca/MyMCALogin.do?method=setDefaultProperty&mode=16