To find a luxury taxi service from Haridwar, you can consider the following options:

1. **Local Taxi Companies**: Inquire with local taxi companies in Haridwar if they offer luxury or premium vehicle options. While they may not exclusively specialize in luxury services, some may have upscale vehicles available upon request.

2. **App-based Services**: Check popular ride-hailing apps like Uber or Ola to see if they offer luxury car options in Haridwar. These apps sometimes provide higher-end vehicles for those willing to pay extra.

3. **Travel Agencies**: Some travel agencies may provide luxury taxi services either as part of tour packages or standalone offerings. Contact travel agencies operating in Haridwar to inquire about luxury transportation options.

4. **Hotels and Resorts**: Luxury hotels and resorts in Haridwar often have their own transportation services or partnerships with local luxury taxi providers. If you're staying at a luxury accommodation, inquire with the concierge about arranging a luxury taxi.

5. **Chauffeur Services**: Look for chauffeur-driven luxury car services in Haridwar. These services specialize in providing upscale transportation and may offer a range of high-end vehicles with professional drivers.

Ensure to research and read reviews to verify the reliability and quality of the luxury taxi service you choose. Additionally, inquire about rates, availability, and any specific requirements you might have for your journey.