1. Ardha Titali Asan (Half Butterfly)

How to do?Sit with legs outstretched. Bend the right leg and place the right foot as far up on the left thigh as possible. Place the right hand on top of the bent right knee.
Hold the toes of the right foot with the left hand. While breathing in, gently move the right knee

Benefits
It is an excellent practice for loosening of hip and knee joints, which shall enable faster delivery.
2. Poorna Titali Asan (Full Butterfly)

How to do?Sit with legs outstretched. Bend the knees and bring the soles of the feet together, keeping the heels as close to the body as possible. Fully relax the inner thighs. Clasp the feet with both hands.
Gently bounce the knees up and down, using the elbows as levers to press the legs down. Do not use any force. Repeat up to 20-30 times. Straighten the legs and relax.
Benefits
Tension from inner thigh muscles is relieved. Removes tiredness from legs.