S.chand Publishing — Dr. R.S Aggarwal mathematics for CDS

I got this book just 1 hour before, and i start chapter no. 26 IDENTITIES AND T RATIOS but in starting 7-8 pages i visualise around 2-3 printing mistakes even “+” “-“ mistakes in the identities so I requested you that please make sure about all these facts and i want a urgent reply that what’s your initiative if such mistakes has been found in your publications book