If you have a name in mind, and want to check if the company name is available, you can go to the Ministry of Corporate Affairs website and check its availability. Navigate as follows:
http://mca.gov.in/ -> 'Other Services' -> 'Check Company Name'
Once you find it available, you have to formally apply for availability of a company name using the Form 1A. This can be downloaded at http://mca.gov.in/MinistryWebsite/dca/downloadeforms/Download_eForm_choose.html