Hello! It's exciting to hear that you're planning a trip to Patna, Rajgir, and Nalanda. They are filled with rich culture and history, and I'm here to guide you with some important travel tips.

Best Time to Visit:
The best time to visit Patna, Rajgir, and Nalanda is during the cooler months between October to March. The weather during these months is pleasant, making sightseeing and exploring quite comfortable.

Route and Accessibility:
You can reach Patna via air, rail, or road. Patna has an international airport serving many domestic and international routes. From Patna, Rajgir is about 102 km and can be reached by taxi, auto rickshaw or local buses. After visiting Rajgir, you can proceed to Nalanda, which is nearly 15 km away.

Accommodation and Booking:
There are a good number of hotels in Patna, ranging from luxury to budget. Online booking platforms like Booking.com, Agoda, and MakeMyTrip could be used for reservation. In Rajgir and Nalanda, it's advisable to book ahead due to limited accommodation options.

Clothing and Essentials:
Pack lightweight clothes for the day and a light sweater or jacket for cooler evenings. Don't forget comfortable footwear for sightseeing, a hat or umbrella for sun protection, sunscreen, a water bottle to stay hydrated and any necessary medications.

Health and Safety:
Ensure you're up to date with routine vaccines before your trip. It's advisable to drink bottled water and eat thoroughly cooked food. Also, consider travel insurance that covers health.

Local Etiquette and Respect:
When visiting religious sites, dress modestly covering shoulders and knees. Always ask permission before photographing people, and respect cultural and local traditions to maintain a harmonious environment.