Consider the following statements regarding Punjab’s tax revenue for 2024 - 25:

1. State GST (SGST) is projected to contribute the highest share of own tax revenue.

2. Revenue from state excise is expected to grow by 14% over the previous year.

3. Revenue from taxes on vehicles is projected to grow by 32% over the previous year.

4. Grants from the Centre are expected to significantly increase compared to 2023 - 24.

Which of the above statements are correct?