The seller is very smart. I did as he thought. The book is defective and the first half of the book has the preface, forward and contents printed multiple times. I took out the book much later I ordered it. So as expected by the seller I had to keep the book as the return date was over.
Content wise book is good enough as substitute for originally government printed edition. I bought it as local stores with government printed editions are out of stock & happy that it serves the purpose of reading the contents.