TAMIL NADU HILL STATIONS — HEAVY RAIN & POSSILE LANDSLIDE ALERT TILL TUESDAY: When a low-pressure system develops over the Arabian Sea close to Kerala, watch out for the following hill stations over the next 3 days. HIGH-RISK AREAS TO WATCH – VALLEYS that open from EAST 1. Coonoor belt and surrounding Nilgiris 2. Kodaikanal 3. Manjolai Hills