In Israel average annual rainfall is 25 cm but there is no shortage of water. In India average rainfall is 114 cm but here we find drought in one region or the other every year the reason being as under:
Israel has adopted various water harvesting techniques like drip irrigation etc which is still not prevalent in India.
They have adopted advanced water recycling methods as Israel Leads World in Water Recycling. Some 90 percent of wastewater in Israel is recycled as treated for reuse, most of it in agricultural irrigation unlike India where most of the water bodies are still polluted and not recycled etc