Why is diversification in agriculture necessary?

Chidaksha, this topic has been extensively covered in the study material that's available on our site. Follow the below link and scroll down to the topic 'Significance of Diversification in Productive Activity'.

https://www.meritnation.com/cbse/class11-commerce/studymaterial/economics/indian-economic-development/unit-iiirural-development/442_2488_6392#slide4_agricultural-diversification–-animal-husbandry-fisheries-horticulture