Files named this way often contain school-related resources, such as Grade V debate materials , event photos, or annual academic schedules.
Providing the or where you found it would help narrow down the exact version you have. ANUJ MEHTHA - Kaynes Technology BDSis-3.7z
"BDSIS" is the acronym for several schools, most notably (Siliguri) and Bright Day School . Files named this way often contain school-related resources,
Unpacking BDSis-3: A Guide to [Seismic/Academic] Data Management such as Grade V debate materials