Paddy is one of the three most important food crops in the world and it is the staple food for over 2.7 billion people. It is grown in almost all the states. West Bengal, Uttar Pradesh, Madhya Pradesh, Bihar, Orissa, Andhra Pradesh, Assam, Tamil Nadu, Kerala, Punjab, Maharashtra and Karnataka are major Paddy growing states

TNAU's paddy expert system is a mobile app that covers Nursery Management for Paddy, Cultivation Practices for Paddy, Nutrient Management for Paddy, Crop Protection for Paddy, Farm Implements for Paddy, Post Harvest Technology for Paddy, Marketing for Paddy, Schemes and Institutes for Paddy