What is the fare of Rajdhani express from patna to delhi?

As of my knowledge cutoff in September 2021, the fare of Rajdhani Express from Patna to Delhi may vary depending on the class of travel, date and time of travel, and any applicable discounts or promotions. Here are the approximate fares for different classes:

- First Class AC (1A): approximately ₹2,800

- Second Class AC (2A): approximately ₹2,000

- Third Class AC (3A): approximately ₹1,400

- Economy Class (CC): approximately ₹800

Please note that these fares are subject to change and it's always best to check the latest fares with Indian Railways or through online booking platforms for the most up-to-date information.