(i) In the post-independence period, some states achieved more progress, while some states remained backward.
(ii) States that develop economically can also achieve progress in other areas like education, health and culture.
(iii) The states which have not developed in this manner remain backward in education and civic amenities.
(iv) They are harassed by problems of education, backwardness, unemployment and poverty, etc.
(v) They begin to think that they are being cheated; they are being kept away from the benefits of development.
(vi) Because of this, the understanding between states is broken. This in turn, has a negative impact on national unity.