Question

why net sown area and land under forest have changed from 2005-2015 very marginally

Answer 1

the difference in net sown area is 1.85%
1.85%of this is 60,814.3sqkm
Delhi is 1484sqkm
the net sown area is sowing area is reduced by 40NCR regions
the huge amt of land is getting transformed due to many reasons like industrialisation, desertification,convertion of areal land to pasture land ,migration,climate change,rehabilitation due to project works roads and dams
the same concept holds for Forrest area