3 turns, word for word from the oral. Read the pilot lines out loud.
PAN PAN PAN PAN PAN PAN Mumbai Control IFLY 160, experiencing severe turbulence, unable to maintain FL 330, position 70 DME BBB 0530, FL 330, request FL 270
IFLY 160 descend FL 270
Leaving FL 330 for FL 270 IFLY 160