Consider the following statements in respect of BIMSTEC :
1. It is a regional organization consisting of seven member States till January 2025.
2. It came into existence with the signing of the Dhaka Declaration, 1999.
3. Bangladesh, India, Sri Lanka, Thailand and Nepal are founding member States of BIMSTEC.
4. In BIMSTEC, the subsector of 'tourism' is being led by India.
Which of the statements given above is/are correct?