2011年，印度中央污染委员会（Central Pollution Control Board of India）的一项调查显示，在其8,000个城镇中只有160个同时拥有排水系统和污水处理厂。
In 2011, a survey by the Central Pollution Control Board of India indicated that only 160 of 8,000 towns had both a sewerage system and a sewage-treatment plant.