Had availed Pondicherry + Auroville sightseeing package through Royal Cabs during my visit around 3rd week of December.
1. They did a good job in assisting with choosing the package and were upfront on the fares and other charges.
2. They kept their promise on providing the car model I had asked for.
3. The car was in good condition and the driver (Sridhar) was punctual, courteous and flexible with our itinerary requirements.
One more thing to note- they have the package for 10 hours whereas most of the other cab operators have it for 8 hours.
Overall, a good experience.