Seeking to address the twin challenges of climate change and malnutrition, PM Narendra Modi on Tuesday released 35 new indigenously-developed crop varieties with special traits like drought tolerant, disease resistant and biofortified food crops with higher nutrient content such as protein, iron and zinc.Seeking to address the twin challenges of climate change and malnutrition, PM Narendra Modi on Tuesday released 35 new indigenously-developed crop varieties with special traits like drought tolerant, disease resistant and biofortified food crops with higher nutrient content such as protein, iron and zinc.