The city thrives/pulsates/bustles under the bright/golden/fiery glow of dawn, its citizens unaware of the hidden/secret/shrouded world that unfurls/awaits/emerges when night falls/descends/envelops. Beneath/Within/Past Kolkata's glittering facade lie stories/secrets/mysteries whispered in dark/shadowy/dimmed alleys and shared/bartered/traded under