The Book is about powers and privileges of MP and MLAs - Their use and misuse. Since the privileges have always been a problematic issue for those who are concerned, then author thought to work on the subject, which would constitute the relevant matter for study for all walks of life. Fortunately it was a topic for Ph.D thesis also, suggested by Prof. Murtaza Khan who also helped a lot and contributed to the knowledge.The powers and privileges which we found today are not same as what we had earlier. Rather, in 11th century it was only the king and his great council that used to govern the estate. Even the member of the council had a right just to advice the king but the final veto rested with the king and it was he who either accept their advice or not. Over the time the commons struggled to fight for their share in legislation. Till 17th century they got some privileges. Because they made their supply conditional to it. Various acts contributed towards this direction.Privileges they got initially were four in numbers, they were freedom of speech; freedom from arrest during session; access to royals and to legislate on the matter.