Protesters are angry over Khadga Prasad Oli's decision to dissolve parliament and order new elections amid a feud within his governing party.
Nepal has enjoyed a degree of political and economic stability over the last few years but a clash between a renegade party and the government could endanger the calm.
Fluorescent tents, discarded climbing equipment, empty gas canisters and even human excrement litter the well-trodden route to the summit of the 8,848-metre (29,029-foot) peak.
An expedition would be made next year to find whether the massive 2015 earthquake altered the height of the world's highest peak.
Human Rights Watch asks Nepal government to ensure the probing of complaints of abuse over charter protests.
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