How many Fundamental Duties are mentioned in Indian Constitution?

In which case the Dissolution of Bihar Legislative Assembly by Governor before formation of Government was declared un constitutional?

The principle of basic structure in the Constitution was established in?

Which of the following cases is related to Constitutionality of Right to death?

By which Amendment of the Constitution the number of Ministers was limited to 15% of the total number of the House?

Which one of the following cases decided by Supreme Court led to First Amendment in the Indian Constitution?