What is this apple disease or virus? I think it may happen due to drought



Curling of leaves can be heat and drought stress. My apples always seem to have curled leaves. And it’s hot and dry here. Persimmon leaves are always curled up also.

The beat-up leaves could be wind damage.

It might be scab, but it might help if we knew the location.

And what sort of weather you had when those were tender.
Sometimes wind can do that, too.
My neighbour came home after a 2 week trip and asked what to spray his quince with as the leaves were contorted. I had to calm him down that we had had an orkan (very strong European) wind storm and all young growth was damaged, but the quince and some of my thicker-leaf apples looked the worst, because they continued to grow after the damage.

My apple orcherd lies in north west part of the india where is also western himalayas hills, in short my orcherd is in the hilly region
Now days we are facing drought like weather condition we are fully dependent on the natural rain.