Research the company and its business a bit before appearing for the interview. Also, find out a bit about the technologies they work upon. You don’t need to know everything inside out but having a fair idea about the company makes you appear interested in the position, to be taken seriously.

For e.g. I see that your company does a lot of projects based on OpenSource platforms like Joomla, Drupal, Magento which is quite interesting as I have a similar kind of experience.