By Hereward Holland Al Jazeera April 14, 2014 Muslim Rohingya are excluded from political representation as a result of not being counted. Myanmar's million-plus Muslim Rohingya population doesn't officially exist on government records. Branded "Bengali" and considered illegal immigrants, they've been living under systematic discrimination since sectarian violence erupted in 2012 in the coastal Rakhine state. In the past six months, resentment of aid groups has been building among some Buddhists because of charities' perceived preferential treatment of the Rohingya, who make up the vast majority of those displaced by the recent unrest. Many aid groups that once provided life-giving support to the Rohingya's squalid camps have either been banned or forced to flee, their compounds ransacked by Buddhist mobs. The mobs gathered after a UN-backed national census, the country's first in 30 years. The headcount officially began on