Determining the "best" Chardham Yatra service from Haridwar can depend on various factors such as individual preferences, budget, level of comfort desired, and specific needs. However, here are a few highly regarded Chardham Yatra service providers in Haridwar based on reputation, customer reviews, and overall service quality:

1. **Uttarakhand Tourism Development Board (UTDB)**: The government-run UTDB offers well-organized Chardham Yatra packages from Haridwar. They provide comprehensive services including transportation, accommodation, and assistance throughout the pilgrimage. UTDB's packages are often reliable and cater to different budgets.

2. **Dada Boudir Tour & Travels**: This is a popular tour operator in Haridwar known for its quality Chardham Yatra services. They offer a range of packages tailored to suit varying preferences and budgets, providing transportation, accommodation, and guided assistance during the pilgrimage.

3. **Dev Bhoomi Travels**: Dev Bhoomi Travels is another reputable tour operator in Haridwar specializing in Chardham Yatra services. They offer well-maintained vehicles, experienced drivers, and personalized assistance to ensure a smooth and comfortable pilgrimage experience for travelers.

4. **Gujarat Tourism**: Gujarat Tourism operates Chardham Yatra packages from Haridwar, providing pilgrims with organized tours to the sacred sites. Their packages often include transportation, accommodation, and other essential services required for the pilgrimage.

5. **Private Taxi Services**: Several private taxi services in Haridwar offer Chardham Yatra services, providing personalized transportation to the pilgrimage sites. While not complete tour packages, these services can be customized according to the pilgrim's preferences and schedule.

When selecting a Chardham Yatra service from Haridwar, it's essential to research each provider thoroughly, consider their offerings, read customer reviews, and assess whether they meet your specific requirements for the pilgrimage journey. Additionally, booking in advance and communicating any special needs or preferences to the service provider can help ensure a satisfactory experience.