Due to lack of social justice unity and integrity of any country can not remain intact. Due to casteism, separatism, regionalism and other social disparities, foreign invadaers and thereafter Britishers were able to enslave India for a long time by following the policy of divide and rule. The states which lack social justice, usually experience unstability of power. In other words such states are more prone to civil war and rebellion. All good rulers have given recognition to social justice in their policies. The states and administrators who worked against social justice have always had slippery hold (unstability) on the power.
