Allahabad, now known as Prayagraj, is a city of great religious importance. From Indirapuram, you can take a train from Ghaziabad or New Delhi. The distance is about 650 km. The city is famous for the confluence of the Ganges, Yamuna, and Saraswati rivers.
Total Distance: 650 km by road, 550 km air distance.
Prayagraj Express is a very popular and fast train.
October to March for pleasant weather.