document is a question of law. Construction of a document involving the application of any principle of law,isalsoaquestionof law. Therefore, when there is a misconstruction ofadocumentor wrong application of a principle of law in constructingadocument, it gives rise to a question of law. (Emphasis supplied) (ii) The High Court should be satisfied that the caseinvolves a substantial question of law, and not a mere questionOflaw.A question of law having a material bearing on the decision of the case (that is, a question, answer to which effectstherightsof parties to the suit) will be a substantial questionoflaw,ifitisnot covered by any specific provisions of law or settled legal principle emerging from binding precedents and involves a debatablelegal issue. A substantial question of law will also arise in a contrary situation, where the legal position is clear, eitheronaccountof express provisions of law or binding precedents, butthe Court below has decided the matter, either ignoring or acting contrary to such legal principle. In the second type of cases, the substantial question of law arises not because the law Is stilldebatable,but because the decision rendered on a material question, violates the settled position of law.