Which of the following are not disease resistant varieties?a. Pusa Gauravb. Pusa Sem-2c. Pusa sawani

These are not the disease resistant varieties. These all are insect pest resistant varieties. Pusa Gaurav is the variety of Brassica which resistant to aphids, Pusa Sem-2 is the variety of flat bean and resistant to jassids, aphids and fruit borer, while Pusa Sawani is the variety of okra which is resistant to shoot and fruit borers.