Law enforcement agencies inspected the rear wall of the Vasundhara police outpost in Ghaziabad on Saturday following a late-night explosion that injured a food delivery worker.
The blast occurred around 9 pm on Friday, shattering windowpanes and cracking walls while a sub-inspector and a 20-year-old food delivery worker were present.
A social media account under the handle GHAZI 2 claimed responsibility for the incident and issued threats, while police stated all investigative angles are being probed.