The various Departments of the Directorate have collborated with the following international, national and private agencies.
International
- Linkoping University, Sweden
- International Rice Research Institute (IRRI), Philippines
- Unversity of Guelph, Global Affairs and IDRC, Canada
- University of Western Sydney, Australia
- University of Tokyo, Japan
- SARMAP, Switzerland
National
- Indian Council of Agricultural Research (ICAR), New Delhi.
- Indian Institute of Soil Science (IISS), Bhopal.
- Board of Research in Nuclear Sciences (BRNS), Mumbai.
- National Bureau of Soil Survey and Land Use Planning (NBSS&LUP), Nagpur.
- TNAU – Indian Space Research Organisation (ISRO), Bangalore.
- TNPL – Karur.
- GOI DST– PURSE & FIST scheme, New Delhi.
- Alagappa University, Karaikudi, Tamil Nadu.