Welcome to Kalvi40 - A free Tamil medium Samacheer Kalvi educational application for Government school children from 3rd to 8th standard in Tamil Nadu and Puducherry.

BumbleB Trust's non-profit initiative Kalvi40 provides digital content in different forms with focus on building holistic learning for every Tamil rural students need.

Advertisement free & simple design Kalvi40 app contains the following features completely in Tamil language:

· Simple and interesting 3 minute videos across all the 5 school subjects as per Tamilnadu school book syllabus
· General Topics section contains variety of topics like origami, stories, foreign language learning, cultivate reading habits etc.
· Practice test to assess the learning level and also to understand the mistake done at each question level.
· Timer based test provides opportunity to take test with time pressure
· Daily puzzle is designed to make students think on everyday basis
· Daily moral stories provides opportunity to hear interesting stories with strong moral values.
· Feedback provides opportunity to understand the needs of students and teachers

Kalvi40 covers all the five subjects of 3rd standard, 4th standard, 5th standard, 6th standard, 7th standard and 8th standard. Five subjects covered are Tamil, English, Maths, science and social science.