After denying admissions to students under the Right to Education (RTE) Act, which reserves 25 per cent seats for children coming from socially and economically weaker sections, to protest the government's delay in giving them reimbursements of Rs 500-600 crore, private schools have taken a much stronger decision this time. A total of 45,000 such schools across the state would remain closed on April 7 and those conducting examinations will observe a Black Day.