1 The mist rolled in heavy that night over Shobhabazar, clinging to the crumbling walls of century-old houses and hanging like a curtain in the narrow lanes where time seemed frozen. It was here, in the heart of North Kolkata’s labyrinth, that the silence was broken by the shrill cry of a milk vendor who stumbled upon the body. Bimal “Banker” Ghosh, a man known in whispers as both a petty moneylender and a sly informant of his younger years, lay sprawled in the mud, his throat slit with chilling precision. The flickering glow of a dim streetlamp caught the…