COIMBATORE: Several low-lying residential pockets in Coimbatore were inundated on Monday as a surging Noyyal River, swollen by heavy rains, triggered overflows. Trapped residents endured a sleepless night as water entered their homes..Similarly, an overflowing Selva Chinthamani Tank flooded roads and houses in Selvapuram, while in Vellalore, water from the overflowing Rajavaikkal channel entered nearby houses, prompting officials to clear obstructions to facilitate drainage.