For Tashi Choezom, a Tibetan studying for a nursing degree in New Delhi, the string of suicides by monks and nuns who have set themselves on fire to protest Chinese religious repression are a sin.

"I express my solidarity with those who have committed self-immolation, but it is terribly wrong to take one's own life," Choezom told AFP during a recent demonstration by exiled Tibetans.

The nine Buddhist monks and two nuns who have set themselves ablaze this year -- chanting for religious freedom and the return of the Dalai Lama to his homeland -- have drawn international attention to the Tibetan campaign.

"We are getting support from various countries through this, but these acts of self-immolation must stop. Buddhism does not allow this," said Choezom, who has never been to Tibet.

The protests began in March when a 21-year-old monk called Phuntsog set himself on fire and died at the influential Kirti monastery in Sichuan province, which borders Tibet and has a large Tibetan population.

With a second nun dying on Thursday after setting herself on fire, at least seven of the eleven protestors have died, and their actions mark a new phase in resistance to Chinese rule.

But they have also divided opinion in the exile community: some feel the ends justify the means, others are staunchly opposed to suicide or attempted suicide on religious grounds.

A culture of self-censorship due to heavy Chinese security and restrictions placed on reporters in the remote Himalayan province, make measuring opinion inside Tibet extremely difficult.

Geshey Lobsang, a monk at the monastery of the Dalai Lama in Dharamshala, the Tibetan spiritual leader's home-in-exile in India, says when it comes to suicide the teachings of Buddhism are ambiguous.

"It is sin to destroy one's body, but Buddhist philosophy also states that every action should be driven by good motivation and reason," he told AFP.

"So, if the Tibetans self-immolated with a good motivation and to fulfil a higher cause, it cannot be counted as sin."

The spate of self-immolations has also posed a dilemma to the government-in-exile, which cannot be seen to encourage a protest movement that serves its political aims by pressuring China -- but costs lives.

The prime minister of the government-in-exile, Lobsang Sangay, has paid tribute to the "courage" of the protestors and held a day of prayers in solidarity.

"The real question is why are these young Tibetans doing this?" said Samphel Thubten, a spokesman for the Tibetan government-in-exile.

"Their actions grow out of really repressive measures put in place and the fact that the victims of that repression have nowhere to turn," he told AFP.

While views on whether suicide is a legitimate form of protest vary among exiles, the diagnosis of why monks are taking their own lives is unanimous.

"I'm personally against this way of protest. In Buddhism, it's a big sin. But they don't have a choice because they are not allowed to practise their faith," said Tsewang Dolma, a 28-year-old Tibetan refugee in the Nepalese capital Kathmandu.

Others echo the widely held belief that the self-immolations are a cry of desperation from a people who fear that their religious identity and culture are losing a battle for survival.

Many Tibetans feel the region is being "colonised" by ethnic Chinese and fear for the future of their distinct language and customs.

In 2008, riots broke out in the capital Lhasa, other areas of Tibet and neighbouring Chinese provinces with Tibetan populations. Chinese and Muslim residents and their businesses were targeted in unrest seen as a consequence of simmering ethnic grievances.

At the Kirti monastery, the focal point of the recent troubles, Kate Saunders from International Campaign for Tibet says religious ceremonies have been halted there since March, with even the burning of incense prohibited.

"For some of the monks, their religious identity is more important than life itself," she said of the suicides.

The Dalai Lama, who Tibetans look to for guidance on religious and political developments, is yet to comment on the self-immolations, although he did take part in public solidarity prayers.

The spiritual leader, who fled to India in 1959 after a failed uprising against Chinese rule, has held nine rounds of fruitless talks through his envoys with Beijing about the status of his Himalayan homeland.

"We follow His Holiness's path of peace and non-violence, but now we have no choice left," said 30-year-old Kyenrab Nawa, who works at a Tibetan cultural centre in New Delhi.

"These supreme sacrifices do not mean we are veering away from our way of life."