Disha Publication is brought to you by AIETS (All India Educational Testing Services), India’s first education company focused on Testing. Book Store of Disha Publication Founded under the guidance of nationally renowned Professor Dr O.P Agarwal, in the last 16 years, we have provided learning and assessment solutions to lacs of students, thousands of teachers, hundreds of schools across the country in the diverse space of Grade 1 to international exams like GRE/GMAT.