Trust ITR 12A 80G not registered

CA. Manish Kuamr Chandaliya (Chartered Accountants) (75 Points)

24 September 2020  
a trust didn't register under 12A and income tax return not filed , running school. Notice received from income tax to file AY 2019-20, Running school and deposited cash in account.
which ITR SHOULD BE FILED.