Assessement of society

Dear Friend,
There is a society which is registered under society registeration act 1860 but not under Sec 12A & 80G of Income Tax Act.This society is providing education & computer classes.
Issue-1 : In which status it will be assessed ?
Issue-2:  Whether Exemption limit of 1,60,0000 will be applicable ?
Issue3: Requirement of Tax audit?
Issue4: ITR Form No?
Issue5: If trustee has purchased some assets from his personal A/c then whether this amount will be taxable?
Issue6: Whether return will be filed online or manual
Issue7:whether in Accounts Fixed assets purchased by Trustee will be shown as Corpus or otherwise

 please guide me in this matter