Rains continued overnight in Tamil Nadu's Cauvery delta areas affecting standing paddy crops and the India Meteorological Department on Wednesday said heavy to very heavy and extremely heavy rainfall is likely in a few places in Cuddalore and Mayiladuthurai districts, also part of the delta region. Rains submerged crops, partially and completely, at several places including those in and around Tiruvarur, Thiruthuraipoondi, Muthupettai, Mayilduthurai, Vedaranyam and according to farmers' rough estimates, crops over at least 2,000 acres were affected. In view of the rains, November 27 has been declared a holiday for schools and colleges, including Tiruvarur, Cuddalore, Nagapattinam, and Mayiladuthurai districts. A holiday has been declared only for schools in Chennai, Chengelpet, Ariyalur, Kanchipuram. According to the IMD--Regional Meteorological Centre's update on Wednesday morning, the deep depression over southwest Bay of Bengal moved nearly northwards with a speed of 10 kmph and