How can crop varieties be made disease resistant to overcome food crisis in India ?

The crop varieties can be made disease resistant so as to overcome food crisis in India by usual and conventional methods of breeding or mutation breeding for disease resistance by hybridization and selection : The various sequential steps of this programme are screening germplasm for resistance sources, hybridization of selected parents, selection and evaluation of the hybrids and testing and release of new varieties // mutation breeding. It is possible to induce mutations artificially through use of chemicals or radiations (like gamma radiations), and selecting and using the plants of desirable character as a source in breeding. // Selection amongst somaclonal variants / Genetic engineering.

(a) Variety of wheat resistant to leaf and strep rust is Himgiri. 

(b) Variety of Brassica resistant to white rust disease is Pusa swarnim / Karan rai.