Two persons died in rain-related incidents in Tamil Nadu on Tuesday even as the Met Office forecast a decrease in rainfall in the State and Puducherry with the depression in Bay of Bengal moving towards the Arabian Sea.

“The depression has moved towards Arabian Sea. Rainfall is likely to decrease in the coming days,” a Meteorological department official said.

The official said rain or thundershowers may occur during the next 24 hours in interior Tamil Nadu while coastal areas of the state may experience isolated rainfall.

For Chennai, the sky would be generally cloudy with one or two spells of rain or thundershowers in some areas in the next 24 hours, he said.

Ramanathapuram district received heavy rainfall of 13 cm in the last 24 hours ending 8.30 a.m. on Tuesday, followed by Tindivanam with 8 cm, Pamban and Bhavanisagar with 5 cm each.

The two deaths were of a father and his son, who were electrocuted when they stepped on a live wire in front of their house at Singikulam near Tirunelveli.

Chief Minister Jayalalithaa said last week that 20 persons had been killed in rain related incidents since the onset of the northeast monsoon on October 19, 2012.