BHUBANESWAR, Oct. 29 -- As Cyclone Arnab weakened into a deep depression on Thursday, the remnant weather system continued to trigger torrential rainfall across southern Odisha districts of Gajapati and Ganjam, causing landslides, road damage, river swelling, and inundation of low-lying areas.

The weather system was centred about 60 km south of Malkangiri district headquarters and was moving northwards at a speed of 15 kmph, the India Meteorological Department (IMD) said. It is likely to weaken further into a depression over the next few hours and, by evening, into a well-marked low-pressure area, it said.

In Gajapati district, continuous rainfall for more than 36 hours disrupted transportation in hilly areas, with landslides and uproot...