IVWS Grand Marathon | Indus Valley World School IVWS Grand Marathon : Safe Drive Save Life – Kolkata Jaago 2017. Its a joint public service initiative by Kolkata police & Indus Valley World School (IVWS) IVWS Grand Marathon : Safe Drive Save Life – Kolkata Jaago 2017. Its a joint public service initiative by Kolkata police & Indus Valley World School (IVWS)