Five measures to protect ourselves from nuclear radiation and attacks are
(i) Do not look at the fire blast, as it can cause instant blindness.
(ii) Close all doors and windows and stay indoors till further communication from the government comes. Radioactivity does not penetrate solid structures, though fire may cause damage to buildings.
(iii) Cover all food and water. Do not consume water, milk or food obtained following a nuclear blast.
(iv) Await government instructions/communications if you have to move out of your house.
(v) Do not panic and follow the above measures to protect yourselves properly.