Kathmandu, Nov 27: Prime Minister Sushila Karki has urged the private sector not to take their responsibility of enrolling workers and employees in the social security system as a burden.Addressing a programme organised at the Office of the Prime Minister and Council of Ministers in Singha Durbar on the occasion of the Eighth Social Security Day today, the Prime Minister called on employers to regard this responsibility as a matter of prestige.She added that social justice cannot be fully achieved without comprehensive social security, and stressed the need for the effective implementation of contribution-based social security programmes in a country...