Seniority and experience > Department and Private Sectors Backup > Political support. There was a case a year and half ago. What happened was that the minister and sachib wanted to remove the head of a government office. But he had so much support form all the private sectors including medias that trying to forcefully overthrow him became so controversial that the minister himself was changed. You might wonder why would private sectors support a government officer? Because an honest and experienced officer being a head of the department means that he will do right things and doing the right things makes it easier for private companies to work freely without suppression and having to bribe the government workers every now and then. Thus if big companies like kantipur airlines, banks, etc have your back then even the PM can't make you resign forcefully.