खोज एवं आविष्कार, जनक एवं संस्थापक. This app consist knowledge about discovery and invention of various things. The App is well organized and categorized in four category. 1. खोज. 2. आविष्कार. 3. जनक. 4. संस्थापक. 5. Quiz. The app consist of some very general knowledge, Samanya gyan. The app is well organized general knowledge Samanya gyan.