Absolutely! Delhi, Agra, and Jaipur, collectively known as the Golden Triangle, are some of the most visited destinations in India. Here are some travel tips for your trip:

Best Time to Visit:
The best time to explore these cities is during the cooler months from October to March. Winters can be quite cold, especially in December and January.

Route and Accessibility:
You can start with either Delhi or Jaipur, as both are well connected with major cities by air, rail, and road. From Delhi, Agra is about 3-4 hours drive away, while Jaipur is about 5-6 hours. From Agra to Jaipur, it's about 4-5 hours.

Altitude and Acclimatization:
These cities are situated at low altitudes, so acclimatization won't be an issue.

Accommodation and Booking:
Each of these cities offers a wide range of accommodations, from budget guesthouses to luxury hotels. Bookings can be done online via various hotel booking platforms. Do book in advance for better deals and availability.

Clothing and Essentials:
Light and modest clothing is recommended, considering the conservative culture in places, especially during visits to temples or religious sites. Don't forget to pack sunscreen, hats, and light shawls to protect against the sun.

Health and Safety:
Stick to bottled water and avoid street food if you have a sensitive stomach. Traffic can be chaotic so be cautious while crossing roads.

Local Etiquette and Respect:
Indians generally appreciate modest dress, particularly at religious sites. During your interactions, remember to respect the local culture and traditions.

Also, while visiting any monuments, follow the rules regarding photography, littering, and noise. For specific sites like Taj Mahal, certain restrictions may apply, make sure to check for signage or ask the local authority.