KOZHIKODE: In the wake of heavy rains and waterlogging in Thrissur, Kozhikode, Ernakulam, Malappurama nd Wayanad districts, all educational institutions will remain closed on Tuesday. All colleges including professional colleges will remain closed. Kendriya Vidyalaya, Madrassas and Anganwadis will also be shut. All universities in the state have postponed tomorrow's exams due to the rains.