The National Investigation Agency (NIA) is investigating a bomb blast that occurred near the Nalagarh police station in Himachal Pradesh's Solan district on January 1. While no casualties were reported, the explosion caused significant impact, cracking windows of nearby buildings. Proscribed outfit Babbar Khalsa International and the Punjab Sovereignty Alliance have claimed responsibility via social media, alleging it was retaliation for inaction against drug smuggling. Police are examining CCTV footage and forensic samples, coordinating with Punjab Police and the NIA. The BJP has criticized the state government's law and order situation.