1) 06.00 hrs to 16.10 hrs only on 11.03.2018(Sunday) means 06:00 AM to 04:10 PM (total 10 hr.).
2) and 3) the best way to avoid the impact of this mega block is to take cab or bus and travel, you will reach your destination 3-4 hr., bcz IR already announced "Passengers are requested to kindly bear with the administration for the inconvenience caused"
apart from this railways cant do anything.