Audit of trusts

Dear friends,

I have the following doubts regarding the audit of a trust:

1. The trust is not registered under Sec. 12A and not claiming exemption u/s 11. So, is it necessary to get the account audited (Gross receipts Rs. 10,50,000/-).

2. Whether the above trust is eligible to deduct 15% of the gross receipts while computing total income ? Or, this 15% is only for registered trusts ? (This trust is paying tax for the antire surplus without claiming exemption u/s 11).

Please share your viws..

Thanks in advance..

vinodaca74 @ gmail.com