BJP National Executive Member and MLA P Vishnu Kumar Raju said he knew that nothing is permanent. While addressing the members in AP Assembly, BJP MLA said he always sticks to one principle only and added that he will speak that only which he finds correct one. 'This post is temporary and I know it very well. I also know about the retirement', Vishnu Kumar Raju said in a lighter vein. His such funny comments made CM Chandrababu Naidu to laugh in the Assembly. Watch the video for more insight.