Kathmandu, April 12 -- How long will fuel prices keep rising? It remains uncertain. How high will the cost of living climb? No one seems to have a clear answer.

Consumers across Nepal are increasingly feeling the strain as fuel prices rise week after week, pushing up the cost of almost everything-from transportation and groceries to dining and daily household expenses.

Nepal on Friday raised fuel prices for the fourth time in a month, making petroleum products the most expensive among regional peers. Under the revised rates, petrol now costs Rs219 a litre ($1.48) in Kathmandu, while diesel is priced at Rs207 ($1.40) a litre.

Despite the repeated hikes, the state-owned Nepal Oil Corporation says it continues to incur heavy losses-around...