The procedure enhances a person’s chances of survival if performed as soon as the heart stops pumping.
So if you see someone keeling over or lying unconscious, call for help and rush to their aid.
First of all, call or shout for help. Call 112, 102, or 108 for medical assistance or ask someone nearby to do so. Always save emergency numbers on your mobile phone.
Take stock of the situation quickly. Kneel next to the person and lay them flat on their back.
Tilt their forehead back with one hand, and lift their chin. Open their mouth and check if anything is obstructing the airway.
Briefly listen for breathing. If there is no breathing, start performing CPR.
Place the heel of one hand in the centre of the chest. Place your other hand on the top of the first, interlock your finger
Keeping your arms straight, use the heel of your hand to push down on the breastbone firmly and smoothly so that the chest pushes down five to six centimetres, and release to allow the chest to rise back.
Do this at a rate of 100-120 chest compressions per minute. The American Heart Association suggests performing compressions to the beat of the song "Stayin' Alive."
Follow these steps till you see signs of life or medical assistance arrives.