CEO Office, Delhi had requested DCP, Election, Delhi Police to lodge FIR and take necessary action against the offender at the earliest in both incidents, the statement said.
In one of the incidents, a 27-year-old man has been arrested from Rajasthan for allegedly cheating people on the pretext of making and renewing voter ID cards through a website.
The accused is under judicial custody after two days of police custody, it said.
Interrogation revealed that the accused had been using the fake website for six to seven months and has cheated around 5,000 people of nearly Rs 25 lakh.
In the second incident, investigation is underway.
"The public is, therefore, advised to visit ECI's official website, eci.gov.in, or CEO Delhi's website, ceodelhi.gov.in,or call voter helpline number (1950) for authentic and official information and prevent themselves from being cheated by the unscrupulous elements," it said.
Any such information available or displayed online must be verified from the official websites, the statement said.