During this time , water from the Indus river remained diverted through the diversion channel .
The main embankment dam and the upstream blanket were constructed across the main valley of the river Indus as part of the second stage of construction .
During this time , water from the river Indus   remained diverted through the diversion channel .
The main embankment dam and the upstream blanket were constructed across the main valley of the river Indus as part of the second stage of construction .