S. 10 (23C): Educational institution – Statement in the course of survey – Certain expenses not properly vouched – Principal Commissioner cancelled registration by invoking clause (b)(ii) of 15th proviso to section 10(23C) –Edifice erected on statement of trustee – No case within any of ‘specified violation’ – Cancellation order revoked.[S.10(23C(vi) , 131, 133A ]