Diagnosed with vocal chord cancer in early 2010, Nalini Satyanarayan underwent a surgery successfully in April 2010 and took radiation therapy subsequently. But due to the location of the cancer, they had to remove her voice box, and she was fitted with a provox prosthesis during surgery. The prosthesis is a valve between the food pipe and the wind pipe.

It helps one to speak by modulation of air. The international varieties of the prosthesis cost anywhere between ₹20,000 – 30,000. Currently Nalini uses the AUM prosthesis developed by an Indian oncologist, costing only ₹50.

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