To be marginalised is to be forced to occupy the sides or fringes and thus not be at the centre of things.
The word ‘marginalisation’ refers to a situation in which an individual or a group of individuals is deprived of certain privileges or treated as different from others. Marginalisation can be experienced in every sphere. Several factors are there which make certain groups in society feel marginalised. These factors are economic, social, cultural and political.

The reasons:
(i)Adivasis have been increasingly forced – through economic changes, forest policies and political force applied by the State and private industry – to migrate to lives as workers in plantations, at construction sites, in industries and as domestic workers.
(ii)Adivasis have also lived in areas that are rich in minerals and other natural resources. These are taken over for mining and other large industrial projects.

Safeguards are needed to protect minority communities against the possibility of being culturally dominated by the majority. 

The term minority refers to communities which are numerically small in relation to the rest of the population.