It comes after at least two mountaineers died on the world's highest mountain after crowds of people became stuck in a queue leading to the summit last week.
This spring, 381 people have ascended Mount Everest, according to Mr Ghimire. Up there, the oxygen is 30% of what is available normally.
The summit of Mount Everest is 8,848 meters (29,029 feet) high, an elevation at which each breath contains only one-third of the oxygen found at sea level.
"This [the deaths] was very unfortunate".
A spate of deaths on Mount Everest in May can not be exclusively attributed to overcrowding on the mountain, Nepal's tourism authority has said. "There's a cutthroat competition among local [expedition] companies".
"The major problem is inexperience, not only of the climbers that are on the mountain but also the operators supporting those climbers", he explained.
"Only trained climbers should be granted the permit to climb Everest".
Climber Cory Richards said, "Too many people, one weather window, all in, there are obvious consequences to it".
It's a startling sight for those familiar with Everest climbing - the lineup represents a treacherous trend atop the mountain.
"I saw some climbers without basic skills fully relying on their Sherpa guides".
"There is still a lot of garbage up there, and it will take another 3-4 years of continuous cleanup to bring down everything and ensure that expeditions do not leave anything up there", said Sangye Sherpa. Last week, there were reports of massive crowding, especially near Hillary Step, where climbers had to walk single file.
"Mountaineering in the Himalayas is in itself an adventurous, complex and sensitive issue requiring full awareness, yet tragic accidents are unavoidable", he told the BBC. "So, a few unfortunate accidents happen during the expedition", the statement said.
Add a record number of people, and we're seeing more deaths on the mountain than in recent years.
"It's clearly true that crowds slow the pace of a climber and thus increase fatigue and the use of oxygen".
Sherpa said the government should introduce a rule limiting the number of climbers on Everest.
Mountaineers have suggested hard weather conditions, a lack of experience and the growing commercialization of expeditions as contributing factors to the backlog. During his own climb this year, Saikaly was shooting a documentary.