Q.planning to grow lemon at hill
This area is iron ore rich and cold, sticky red mud. Average rainfall is 80+”. Misty and cloudy for 6-8 months annually with elevation 3800msl.
My first concern would be the drainage, and second would be the winter temperature. As long as the winter temp doesn't get down to freezing for more than a few hours, once or twice in a season, you could grow lemon outdoors. You may need to do something about the drainage of the soil, and also the pH. https://www.gardeningknowhow.com/edible/fruits/lemons/how-to-grow-a-lemon-tree.htm
You may want to think about growing lemons in containers. https://www.gardeningknowhow.com/edible/fruits/lemons/growing-lemon-trees-containers.htm
I recommend you seek specific advice about your area from the horticultural assistance program available to you. Try calling the botanical garden in the city nearest you for information.
