Which disease resistance is provided by Pusa Shubhra and Pusa Snowball $K-1$?

The Indian Agricultural Research Institute $(IARI)$,New Delhi,has released several fortified vegetable crops that are rich in vitamins and minerals. These are:
$I$. Vitamin-$A$ enriched carrot,spinach,pumpkin
$II$. Vitamin-$C$ enriched bitter gourd,bathua,mustard,tomato
$III$. Iron and calcium enriched spinach and bathua
$IV$. Protein enriched broad beans,French bean,garden pea
Choose the correct option.

What is the breeding of crop varieties with higher levels of vitamins,proteins,and minerals called?

High content of lysine and tryptophan is present in

"Pusa Sadabahar" is resistant to . . . . . . disease.

Which of the following substances were found to be doubled in hybrid varieties of maize?