Different methods followed to classify Indian sub-continent into homog
eneous agro-climatic zones have been summarized and an attempt made to
regroup the 126 agro-climatic zones identified by ICAR under the NARP
programme. The present exercise was made to combine contiguous zones,
having similar soil, climatic, physiographic and cropping patterns, t
hereby reducing the total number of zones to a manageable number of 60
, in addition to the 2 zones representing Andaman-Nicobar islands and
Lakshadweep islands.