Start this exercise on your back and place your legs up to a 45-degree angle. Now keep your arms straight in-line with the ground palms facing down.
Lift up your head, neck & shoulders a slight bit off the ground.
Keep your legs up straight and together with your toes pointed out as you lower one leg.
Raise your lowered leg and lower the other now focus on keep your core tensed.
Continue while alternate between your legs.