The process of human migration largely affects the population both in the regions from where the people move out and where they go. 

Some of these effects are given below :

1. Demographic Effect: Population balance is disturbed due to the human migration. In the area which is left by the migrant people, density of population becomes less, and the area which is filled by migrant people becomes over populated. Besides this, the sex – ratio of population in both regions is also affected.

2. Social Effects: The cultural effects of human migration are also seen in both regions. The migrant people carry along with them their technology, religion, customs, manners, habits, language, and make a remarkable effect on population and their culture where they reside. Also, they adopt the new culture and customs and language of their new domicile. They also raise the eonomic – level by using their technical knowledge.

3. Cultural Effects: The dressing custom, lifestyle, habit, languages etc. of the migrant people are changed according to the new regions, also the area where they live gets and learns the new customs and habits. As the British people affected Indian culture during the British rule in India.