Law ministry says tariff cannot be increased retrospectively.
This may also include ban on Hajj travel by Saudi Arabia, cabinet warned.
Former argues it enjoys rights over exploration blocks awarded before 18th Amendment.
Officials say there is no justification for circumventing gas allocation policy.
SSGC managing director, however, wins stay order from court.
Project likely to get $12.5 billion from internal and external sources.
Agencies say the targets include party leaders, ECP staff and foreign observers.
Uninterrupted electricity will be supplied across the country for 36 hours.
Decision will mean transfer of Rs200b in additional burden onto consumers.
3,000 metric tonnes per day of furnace oil will be provided to AES Lalpir Powe.