Admission for class 11 in Bihar through OFSS started from April 24 to May 20 2025 and first merit list came on June 4 2025 and admission went till July 3 2025 After that schools reopened in Bihar on June 23 2025 and most schools started class 11 in last week of June or first week of July So if you got seat in any school then your class already start or going to start soon in July All process already done by school and board so you should check your school for confirm date