Consider the following statements regarding the British economic policies in India:

1. The Permanent Settlement of Bengal led to the empowerment of zamindars.
2. The Ryotwari system ensured that peasants paid revenue directly to the British government.
3. The Mahalwari system introduced a collective form of land revenue payment by villages.
4. The British government introduced widespread industrialization in India during the 19th century.

Which of the statements are correct?