Thousands of people, including the disabled, sick and children, were left stranded on the highways leading to Kathmandu valley as Nepal's former Maoist guerrillas on Tuesday enforced a blockade to press their demand for a new government even as the ruling alliance warned the siege was against the peace pact.

Lines of trucks laden with essential commodities from India ground to a halt near Nagdhunga, the main entry point to Kathmandu valley from India, while the former insurgents fanned out to five more entry points to cut off all incoming and outgoing traffic for a day.