Conditions are becoming favourable for the onset of southwest monsoon over Kerala, Lakshadweep and northeastern states in the next three to four days, the India Meteorological Department said on Tuesday. Conditions are also becoming favourable for the monsoon to advance into some more parts of the South Arabian Sea, southwest, central and northeast Bay of Bengal in the next three to four days, it said. Meanwhile, the cyclonic storm Remal, which ravaged the coastal areas of West Bengal and eastern Bangladesh in the last couple of days, has weakened into a depression and was over east Bangladesh, the weather agency said. Additionally, a cyclonic circulation lies over south Tamil Nadu and neighbourhood areas, which is likely to bring widespread rainfall over Kerala, Mahe, Tamil Nadu, coastal Andhra Pradesh, Telangana, Rayalaseema, and Karnataka during the next seven days, the IMD said.