It must be planned. 15/3-19/3 will be the time period in which railway services will be used by the people in high numbers. Be it long distance SFs or short distance passenger trains, all will be filled to the brim and now they stand cancelled. Last year also during diwali CR took block near IGP (i guess) which led cancellation of many trains and this time its NR. It is not an accident which has to be done immediately. This could have been avoided by proper planning.