All India Coordinated Research Project (AICRP) was started with the basic objective to develop and disseminate superior cultivars and production/protection technologies across maize growing regions of the country. Based on agro-climatic conditions, the country has been divided into five zones constituting of 32 centres. AICRP organizes multidisciplinary, inter-institutional systematic testing of newly developed cultivars from both private and public sectors. In addition, it also develops production and/or protection technologies for different agro-climatic zones of the country.
Zone-wise distribution of centres in AICRP
| Zone | Zone name | Centres |
| I | Northern Hill Zones (NHZ) | Srinagar (Sri), Kangra (Kan), Bajaura (Baj), Almora (Alm), Barapani (Bar), Imphal (Imp) |
| II | North West Plain Zone (NWPZ) | Ludhiana (Lud), Karnal (Kar), Pantnagar (Pan), Delhi (Del) |
| III | North East Plain Zone (NEPZ) | Baharaich (Bah), Varanasi (Var), Dholi (Dho), Sabour (Sab), Ranchi (Ran), Kalyani (Kal), Ambikapur (Amb), Bhubneshwar (Bhu), Gossaingaon (Gos) |
| IV | Peninsular Zone (PZ) | Rahuri (Rah), Kolhapur (Kol), Karimnagar (Kar), Hyderabad (Hyd), Peddapuram (Ped), Dharwada (Dha), Mandya (Man), Coimbatore (Coi), Vagarai (Vag) |
| V | Central Western Zone (CWZ) | Udaipur (Uda), Banswara (Ban), Godhara (God), Chhindwara (Chh) |
