Consider the following statements regarding Ranjit Singh’s administration:

1. Ranjit Singh divided Punjab into four provinces – Lahore, Multan, Kashmir, and Peshawar.

2. The Kardar system was introduced for efficient revenue collection at the district level.

3. He abolished the traditional Jagirdari system to centralize state control over land revenue.

4. His administration included Hindus, Sikhs, and Muslims in key positions, promoting secular governance.

Which of the above statements are correct?