Which of the following Amendments of the Constitution of India amended Article 19 and inserted provisions fully securing the constitutional validity of zamindari abolition laws in general and certain specified State Acts in particular?

First Amendment

The correct answer is Option 2 - First Amendment

The Amendment of the Constitution of India that amended Article 19 and inserted provisions fully securing the constitutional validity of zamindari abolition laws is the 1st Constitutional Amendment Act of 1951. This amendment introduced several changes, including the insertion of Article 31A and Article 31B, which aimed to validate land reform laws and provided protection against challenges to such laws on the grounds of violation of fundamental rights under Article 19. These provisions were crucial for implementing agrarian reforms and abolishing the zamindari system, which was prevalent in several parts of the country at that time.