The monastery is said to have been founded by Padmasambhava in the 8th century. It is now connected with the Drukpa Lineage of the Kagyu school of Tibetan Buddhism, but its history long precedes the formation of that sect. According to local tradition and also the terma, the Padma bka'i thang, discovered in 1326 in the Yarlung Valley by Urgyan Lingpa, the site was associated with Padmasambhava. But the site was a Buddhist establishment even earlier than that:

A chased copper goblet dated to the first century BCE was found here in 1857 by a Major Hay and is considered to be evidence of Buddhist monks' cells being located in a cave monastery at that time. The frieze on the vase denotes a chariot procession and is considered one of the oldest examples of metalwork to be decorated in this way in India. Known as the Kulu Vase, it is now kept in the British Museum. A damaged marble head of Avalokite?vara also found here, is kept in the Guru Ghantal Monastery itself, and is claimed to date back to the time of Nagarjuna in the second century. This seems to be the only monastery in the region other than Sani Monastery in Zanskar which has a history which is claimed to go back to the era of the Kushan Empire.

There is also a black stone image of the goddess Vajre?var? Dev? (Wylie: rdo rje lha mo), and a wooden statue of the Buddha said to have been installed by the monk Rinchen Zangpo (958-1055), a famous lotsawa (translator of Sanskrit Buddhist texts).

The monastery was originally probably a larger complex of purely Indian style of which nothing now remains. The present structure is two-storied, 17.3 x 11.6 metres facing the northwest. The Assembly Hall or Wylie: 'du khang is on the ground floor. In 1959 the monastery underwent extensive repairs and a small pagoda roof of Kangra slates was added in a rather haphazard manner, which is surrounded by the mud roof which covers the monks' cells and kitchen on the second floor.

The monastery has distinctive wooden (as opposed to clay) idols of Padmasambhava, Brijeshwari Devi and several other lamas.^[9]

About 800 years have elapsed [by 1885 when the account was recorded] since R?n? N?l Chand came from Kolong in the district of Bang?l to settle in L?hul. At the same time ?h?kur Ratan P?l of the P?l family, a resident of Gond in Bang?l, came to L?hul and settled in T?nan, and named T?nan Gondala after his first place of residence; and of his family at the present time ?h?kur H?r? Chand is alive and the holder of the j?g?r of Gondala."^[10]

Gandhola, like all the Drukpa monasteries in Ladakh and Lahaul and Spiti, owes allegiance to the 12th Gyalwang Drukpa, abbot of Hemis Monastery in Ladakh, who, in turn, owes allegiance to the head of the order in Bhutan.^[11]

Gandhola is also famous for its seven story fort with alternating layers of stone and timber, which was once the seat of the local ?h?kur or chieftain, but is no longer occupied. It is a 4 kilometres (2.5 mi) walk from the village of Tupchilling, in which the monastery is set.^[12] it was built by Raja Man Singh, the ruler of the Kulu Kingdom in the early 1700s as a castle for the local ?h?kur.

Still preserved in the dilapidated tower is a prized heirloom of the thakur family: the 'sword of wisdom'. Made of thin wires hammered together in the style developed in Toledo in Spain, when it was under the Moors, the sword was given to one of their forefathers by the then Dalai Lama; in Tibetan Buddhism, it represents the battle against religious ignorance, and the divine Manjushri is normally portrayed wielding one. The sword is not on display but is shown if requested.^[13]

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  Ghandola Gompa door.

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  Padmasambhava statue - Gandhola Monastery.

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  Kulu Vase displayed in the British Museum