In India the vote age is 18, those who completed the age of 18 can be vote in all elections . Age of 18 is eligible for voting when he attained this age will call us voters. In each district, state accrding to the voters , they will prepare a voterlist. sometimes a person may dead or some persons may attained the age of voting so every 5 year they revising the voterlist based on the data
A voters list or list of electors is a list of names and addresses of eligible voters for an upcoming election or referendum.

Revision of electoral rolls field staff is appointed and they visit every house and out of the residing person in houses they register the names of those persons in the enumeration pad who have attained the age of 18 years