With reference to BIMSTEC (Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation), consider the following statements:

1. As of early 2025, it had seven member states.

2. It was formed through the 'Bangkok Declaration', not a Dhaka-based declaration.

3. All its current members were part of the original grouping when it was founded.

4. India leads the tourism sub-sector of cooperation within the grouping.

Which of the statements given above is/are correct?