Give geographical reasons:

A dense network of railways has developed in the North Indian Plains.

As compared to the north-eastern and hilly regions of the country, the railway network is highly dense in the northern plains. It is an important place opted for human settlement because of the fertility of the land. Farming and dairying are the important occupations of the people. The main crop grown is paddy and wheat along with maize, millets, and gram. Many highly populated cities like Allahabad, Lucknow, and Varanasi is located in the region. Because of this, the transportation network, communication facilities, and the infrastructure is highly developed resulting in a very dense railway network in the region.