What is "nambardaar"

The term Nambardaar commonly used in northern India and Pakistan for head of the village who is responsible for certifying land ownership records for governmental purposes. This system dates back to British India. He is also responsible for certifying birth and death. He collects chula tax (family tax) or Abiana for revenue department in Pakistan from the villagers/farmers and deposits it to the government. Some people use the term Lambardaar for the same purpose. Some fixed percentage of the collection Nambardaar keeps as his income.