Chatra Mitra - Your Ultimate Math Solution Companion by Zero Education is an Android application designed to assist students in mastering mathematics from classes 6 to 12. This app provides step-by-step solutions for a wide range of mathematics textbooks used in the WBBSE curriculum, including popular textbooks like SN Dey, KC Nag, Subrata Dutta, and more.

With Chatra Mitra, users can access solved question banks, test papers, and previous year question papers, along with a vast library of over 2 lakh+ meticulously solved mathematics problems. The app also offers exclusive Bengali language support, teacher multi-class selection, collaborative sharing of math solutions, and the option to unlock premium features with Prime membership.