Cost of living in Chittagong (Bangladesh) is about the same as in Allahabad (India)
WARNING! This comparison is based on only a few data points. At this point it is only a guess. It is based on 92 prices entered by 18 different people.
For example, to keep the same standard of living that would require ₨60,000 in Allahabad you would need to make just about ₨59,359 (Taka 75,599) in Chittagong.