As an AI language model, I don’t have access to real-time information or current prices. However, I can provide you with some general guidance on finding a taxi service from Madurai to Rameshwaram.

When searching for a taxi service, it’s advisable to consider the following factors:

1. Research multiple providers: Look for several taxi service providers that operate in the Madurai area. Check their websites, read reviews, and compare prices to get an idea of the options available.
2. Compare prices: Request quotes from different taxi service providers and compare their rates for the Madurai to Rameshwaram route. Keep in mind that the lowest price may not always guarantee the best service, so also consider factors such as the reputation, reliability, and quality of the provider.
3. Check for reviews and recommendations: Look for customer reviews or recommendations online to get insights into the reliability, punctuality, and overall service quality of different taxi providers. This can help you make an informed decision.
4. Inquire about additional charges: Ensure that you inquire about any additional charges, such as tolls, parking fees, or driver allowances, to have a clear understanding of the total cost.
5. Safety and reliability: Consider the safety record and reliability of the taxi service. Check if they have licensed and professional drivers, well-maintained vehicles, and any additional safety measures in place.
6. Customer support: Look for a taxi service provider that offers good customer support, in case you need assistance or have any queries during your journey.

Once you have gathered information from various providers and compared their prices and services, you can make a more informed decision based on your budget, preferences, and requirements.

Remember to contact the taxi service provider directly for the most accurate and up-to-date information on pricing and availability for your specific travel dates.