For long-time storage of garlic the leaves at the top are not plucked. The bunch of garlic of required size is stored in special soil called the termatoria soil (inhabited by termites). Alternatively, anthill soil can also be used. The soil has to cover the tuber only.
Crop: Garlic
Crop Family: Amaryllidaceae
Crop Scientific Name: (Allium sativum)
Crop Vernacular Name: Lesun, roshun
Ingredients: termatoria soil, anthill soil
"Onion and garlic werestored at a ventilated place along with their leaves”
http://nopr.niscair.res.in/bitstream/123456789/9787/1/IJTK%209%283%29%20526-530.pdf
"Garlic can be stored for any number of days by keeping it in a vessel containing ragi grains.”
https://honeybee.org/honeybee_detailed.php?ID=3585&page=1&search_case=garlic%20storage
"Good quality garlic bulbs, with the plant intact are brought from the fields and hung from the roof of the house. They are then used as seed when it is time for the next crop”
https://honeybee.org/honeybee_detailed.php?ID=4555&page=2&search_case=garlic%20storage
"onion and garlic are stored in a mesh bags and hanging method”
http://nopr.niscair.res.in/handle/123456789/19438