<h1>Man dies after school gate bag explosion; forensic teams and NIA probe CCTV, residues, IDs and suspect questioning</h1> A man from Uttar Pradesh died after a bag he was carrying exploded near the main gate of a school in North 24 Parganas, West Bengal; he was initially treated locally and later died in a Kolkata hospital. Forensic teams and the National Investigation Agency inspected the scene; seized items include torn bag fragments, wiring, two mobile numbers, photocopies of identity documents and CCTV footage. Authorities are probing whether the incident involved a planned attack or gang activity, examining chemical residues to identify the explosive, and questioning a local businessman who interacted with the deceased shortly before the blast. No charges have been announced.