The major problem faced by the foodgrain production system of India is the post harvest losses. There are many sources of leakage between production and consumption of foodgrains that not only include wastage of grains during various post-harvest operations but also at the stage of harvesting.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/study-estimation-seed-feed-and-wastage-ratios-major-foodgrains-maharashtra
[2] http://admin.indiaenvironmentportal.org.in/category/journal/agricultural-situation-india
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/seeds
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/animal-feed
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/poultry
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/post-harvest-losses
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/maharashtra
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ahmadnagar-d
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nanded-d