Question

in which Metropolitan cities in Ganga Brahmaputra Plains is

Answer 1

kolkata is the metropolitan city

Answer 2

Hi dear here is your answer

The Ganga river flows through densely populated cities like Allahabad, Kanpur, Varanasi, Lichkow, Patna and Kolkata. The Brahmaputra flows through Arunachal Pradesh, Bangladesh, Nepal and Bhutan.