Ijadat ki Kahnian

Description

Science has created many conveniences for human beings by inventing new machines. But the new generation is unaware of what, when, and how it was invented. You travel by train but do not know about its invention. The book under review will answer all the questions you need to know. The important inventions in the book are presented in the form of interesting stories that children read with interest and they themselves become obsessed with doing great things. This book is available in hard and paper binding.​