Question: query regarding leaf curl management in tomato.
Answer:  please remove the heavily affected plant parts and through away from the field and spray azadirachtin 2ml/l or neem oil 5ml/l of water 3 times at 4 days interval in evening time in the absence of rain. 

for better production please spray one of the following vitamins- mahaphal or sagarika 2ml/l of water once at flowering stage, once at fruiting stage in the evening time in the absence of rain.