The survey was launched in Delhi on Friday.

“For the first time, the entire Census is being conducted on a digital platform by the use of an application which will ensure high accuracy and data security.

“In Delhi, the entire process will take around three months where enumerators will survey around 45 lakh establishments and households,” Central Statistics Office Director General (Social Statistics) A K Sadhu said after flagging off the survey for Delhi.

Sadhu said Delhi is the 26th state where the survey has been launched, while the process is already on in 20 states and 5 union territories (UTs).