What is The Procedure Of Recruitment Of firms like samsung, LG, Videocon, Panasonic?

How does the firms such as samsung, LG, videocon, recruit? Since i've been able to appear in any of their recruitment process so i want to know the procedure to approach them.

For samsung, visit their website and apply for the position in online. https://india.samsungengineering.com/comuser/careers/recruit_list.jsp

For LG, send your CV either by post or email. https://lgrecruitment.com/candidates/candidates.htm

For videocon, there is no current job openings for engineers. Keep visiting this section to know about the current job openings- https://www.videocon.com/wps/wcm/con...cluding+Chennai/Careers/Current+Job+Openings/