More than 200 people plan to sue the city over the East Harlem gas explosion that killed eight and leveled two buildings in March.

The Comptroller’s Office confirmed Monday that 205 people — including victims’ relatives, survivors and first responders — have filed notices of claim, a pre-cursor to a lawsuit.

The city could get stuck with a more than $1 billion bill for payouts, DNA Info, a news Web site, reported.

The blast was centered in aging gas lines under 1644 and 1646 Park Ave.

Among those going to court is FDNY firefighter Dale Scott, who was hurt responding to the blast.

Kadeisha Joseph, 20, who lived in a first-floor apartment adjacent to the blast, slapped the city with a $25 million suit, saying she was so badly hurt that day, she can no longer work.

“I thought it was a terrorist attack. I had no idea what was going on,” she said.

Carmen Quinones, the mother of Griselde Camacho, 48, one of the eight dead in the blast, submitted a $40 million notice of claim, alleging the city failed to maintain the 127-year-old gas lines.

Quinones, too, suffered injuries.

Residents in the area said they smelled gas that morning, but only one person called Con Edison.