Question

what was drain theory?

Answer 1

Heya,

In 1867, Dadabhai Naoroji put forward the 'drain of wealth' theory in which he stated that the Britain was completely draining India. 

HOPE IT HELPS:)

Answer 2

hey mate here is your answer
the drain theory was first developed by dada bhai naoroji in a series of speech and writings subsequently published in 1901 in a volume entitled poverty and unbritish
rule in India...