The gurdwara collapsed yesterday, killing a 30-year-old man hailing from Sitapur in Uttar Pradesh.
Police today said that they were assisting a NDRF team in carrying out rescue operations.
"Three persons are believed to be trapped under the debris and we are trying to trace them," a police official said.
After the incident yesterday evening, some of the injured had been referred to various hospitals including at Delhi and Karnal.
Police said fire department officials were also at the incident spot as the rescue operations were still going on.
The gurdwara, where some construction work was going on, is located on the busy GT road.
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)
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