Three-tier power sharing is normally seen in almost all democracies of modern times. These are distribution of power among central, state and local self-governments. In Belgium, community governments have been formed because equation of number in two regions i.e. Flemish Region (Dutch speaking) and Wallonia region (French speaking people). It was in accordance to circumstances. In the long-run, such settlements fades and new tensions are arises. 
Sri Lanka is ruled by majoritarianism because Sinhalese are in majority there. This numerical game keeps Sri Lankan Tamils away from political rights, equal status and equal access to government authorities, faculties and institutions. As communities are there arrogant and orthodox, there is a problem of accommodation once already burst out in civil war.

Sri Lanka has a diverse population. The Sinhalese community forms the majority of the population (74%) with Tamils (18%) who are mostly concentrated in the north and east of the island, forming the largest ethnic minority. Other communities include the Muslims. Among, these are two sub-groups. The Tamil natives of the country are called ‘Sri-Lankan’ Tamils (13%). The Tamils, who were brought as indentured labourers from India by British colonialists to work on estate plantations are called the ‘Indian Origin Tamils’ (5%).

Most of the Sinhala speaking people are Buddhists, while most of the Tamils are Hindus or Muslims. There are about 7 per cent Christians, who are both Tamil and Sinhalese.

The leaders of the Sinhala community of Sri Lanka sought to secure dominance over government by virtue of their majority.

(ii) In 1956 an Act was passed to recognise Sinhala as the only official language, thus disregarding Tamils.
(iii) The government followed preferential policies that favour Sinhala applicants for university positions and government jobs.
(iv) In Sri Lanka, maximum people believe in Buddhism. A new constitution stipulated that the state shall protect and foster Buddhism.