The Law in these areas are debated in past and are settled laws.
1) "Judicial Review" is basic feature of Constitution of India.
It means this : The Courts shall have power to examine legality of any order of any authority of India however high it may be. And if necessary, Court can struck down such order.
Thus orders of Speakers, Prime Minister, President of India, Lokpal, Lokayukt etc are subject to review by Courts in India.
The Courts have laid down certain strict norms to review such orders. They will exercise their powers sparingly only in rare and fit cases.
2) In Legislative Bodies, Speaker has final authority to give rulings. But such ruling can be always challenged in Court on certain grounds.
Haresh Raichura
24/08/2014
