Emergency, urgency (PAN PAN)

Slow Decrease in Cabin Pressure, No Ground Controller Responding

1 turn, word for word from the oral. Read the pilot lines out loud.

The exchange

1 turn in order
01
You, the pilot

All stations in vicinity of Mangalore, IFLY 160, on 121.5, position 60 DME to MML on Trivendrum-Mumbai route, unable to maintain FL 320 due to depressurization, descending to FL 100, all external lights switched on, keep a look out