S. 153A : Assessment-Search-Participating in assessment proceedings-New plea stating that there was no search only survey was rejected-Assessment based on the statement in the course of search proceedings-Loose sheet fall within the definition of document-Rejection of request for cross examination will not amount to violation of principles of natural justice-Assessment order passed cannot be held to be without authority of law-Request for copies of statements made will have to be made by the person from whose custody any books of account or other documents were seized. [S. 132, 132(4), 132A, 133A, Art. 226]