[LIS-Forum] How many pages are considered as a book

Dear Professionals, I would like to know that in India how many pages are considered as book as per rule. How many pages are considered as a pamphlet, or booklet ? Plz. reply. Tejas Shah Librarian VVP Rajkot -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.