1. Research: Research and review the portfolios of multiple luxury interior designers in Chennai. Look for designers who specialize in luxurious and high-end interior designs. Consider their experience, the type of projects they have completed, and their design style.

2. Ask for Recommendations: Ask friends, family, and colleagues for recommendations of luxury interior designers in Chennai. This will give you a better idea of who is well-respected and successful in the industry.

3. Schedule Consultations: Schedule consultations with multiple luxury interior designers. This will give you an opportunity to discuss your individual needs and vision, as well as ask questions about their experience, design process, and pricing.

4. Choose the Right Designer: After the consultations, choose the designer who best meets your needs and budget. Make sure you feel comfortable with the designer and that you trust their design vision and process.