At the outset let me appreciate you for your esteemed service to various sections of society by bringing out the quality books.  I being the Professor of Physics in the field of IIT JEE coaching industry, I spend maximum amount of time with my students of class 11th and 12th preparing seriously for IIT JEE.  Your books are really helping the students to a very great extent.  Congratulations for the same.
I have taken the series of your books "Physics for IIT JEE" by B M Sharma and they are unique and helping several students.  I have personally recommended these books to so many students in Chennai as well.
Now, I have seen your web site that book titled Advanced Problems in School Physics (vol 1 & 2) are available to train the students for IIT JEE, Olympiads..etc.  I request you to send a set of complimentary copies if possible as it helps me to go through first and then to recommend my students.  As I teach more than 500 students every year, I hope it will be useful for my students, if they are meeting our requirement academically.  Also you can send any other IIT JEE / Olympiad preparation related books in Physics, if possible to the following mentioned address.
Thanking you and wishing you all the best.