As a general rules, the web-portal http://himachal.nic.in / does not collect personal information about the visitor when users visit the portal. You can visit the portal without revealing personal information, unless you chose to provide such information. For e.g. in case of links related to updates, write to CM, feedback etc.
Even in such cases, your e-mail address will only be recorded for the purpose for which you have provided it and will not be added to a mailing list. Your email address will not be used for any other purpose.