Yellow colour and leaf curl in papt

Hi Bk . Hope you are well. Regarding your papaya - Have you checked presence of Whiteflies and Aphids at the backside of the plant leaves. Because it's showing similar symptoms of Ring Spot Virus, Papaya Mosaic Virus. Yellow color of plant might be due to Iron Deficiency and Nitrogen Deficiency . Click on green links given here for checking symptoms and taking control measures from Plantix library, so that, your crop will improve immediately. Otherwise spread of disease is very faster rate and entire crop might reach to non recoverable stage. Hence take care of your crop immediately. Note: effected plants, cut slowly at the base, take out from the field and Burn them immediately.